Abstract
Integrin cell surface adhesion receptors play a central role in mediating cell migration. We have developed a model system consisting of CHO cells ectopically expressing the alpha IIb beta 3 integrin to study integrin affinity and cytoskeletal interactions during cell migration. The alpha IIb beta 3 integrins are suited for study of integrin receptors during cell migration because they are well characterized with respect to ligand binding, cytoskeletal interactions, and signal transduction, and mutants with altered receptor function are available. The alpha IIb beta 3 receptor specifically mediates migration of alpha IIb beta 3-transfected CHO cells. The migration of transfected CHO cells was studied on a fibrinogen substrate both by time lapse videomicroscopy and by random and haptotactic transwell assays. Haptotactic and random transwell assays measured distinct aspects of migration, with the random transwell assay correlating most closely with time lapse videomicroscopy. Mutations in the cytoplasmic domains that increase ligand affinity or activation of the alpha IIb beta 3 receptor into a high affinity state by the LIBS6 antibody decreased the migration rate. Likewise, mutations that increase cytoskeletal organization without affecting affinity also decreased the migration rate. In contrast, truncation of the beta chain, which alters cytoskeletal associations as assayed by absence of focal adhesions, decreased haptotactic migration while increasing random migration. These effects on the migration rate were partially compensated for by altering substrate concentration, demonstrating optimum substrate concentrations that supported maximal migration. For example, cells expressing integrins locked in the high affinity state showed maximal migration at lower substrate concentrations than cells expressing low affinity receptor. Together, these results implicate the strength of adhesion between cell and substrate, as modulated by receptor affinity, organization of adhesive complexes, and substrate concentration, as important regulators of cell migration rate. Further, we demonstrate a dominant effect of high affinity integrin in inhibiting migration regardless of the organization of adhesive complexes. These observations have potential implications for tumor metastasis and its therapy.
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- Albelda S. M., Mette S. A., Elder D. E., Stewart R., Damjanovich L., Herlyn M., Buck C. A. Integrin distribution in malignant melanoma: association of the beta 3 subunit with tumor progression. Cancer Res. 1990 Oct 15;50(20):6757–6764. [PubMed] [Google Scholar]
- Alig L., Edenhofer A., Hadváry P., Hürzeler M., Knopp D., Müller M., Steiner B., Trzeciak A., Weller T. Low molecular weight, non-peptide fibrinogen receptor antagonists. J Med Chem. 1992 Nov 13;35(23):4393–4407. doi: 10.1021/jm00101a017. [DOI] [PubMed] [Google Scholar]
- Brown P. J., Juliano R. L. Monoclonal antibodies to distinctive epitopes on the alpha and beta subunits of the fibronectin receptor. Exp Cell Res. 1988 Aug;177(2):303–318. doi: 10.1016/0014-4827(88)90464-8. [DOI] [PubMed] [Google Scholar]
- Brown P. J., Juliano R. L. Selective inhibition of fibronectin-mediated cell adhesion by monoclonal antibodies to a cell-surface glycoprotein. Science. 1985 Jun 21;228(4706):1448–1451. doi: 10.1126/science.4012302. [DOI] [PubMed] [Google Scholar]
- Burridge K., Fath K., Kelly T., Nuckolls G., Turner C. Focal adhesions: transmembrane junctions between the extracellular matrix and the cytoskeleton. Annu Rev Cell Biol. 1988;4:487–525. doi: 10.1146/annurev.cb.04.110188.002415. [DOI] [PubMed] [Google Scholar]
- Clark E. A., Brugge J. S. Integrins and signal transduction pathways: the road taken. Science. 1995 Apr 14;268(5208):233–239. doi: 10.1126/science.7716514. [DOI] [PubMed] [Google Scholar]
- Damsky C. H., Werb Z. Signal transduction by integrin receptors for extracellular matrix: cooperative processing of extracellular information. Curr Opin Cell Biol. 1992 Oct;4(5):772–781. doi: 10.1016/0955-0674(92)90100-q. [DOI] [PubMed] [Google Scholar]
- DiMilla P. A., Barbee K., Lauffenburger D. A. Mathematical model for the effects of adhesion and mechanics on cell migration speed. Biophys J. 1991 Jul;60(1):15–37. doi: 10.1016/S0006-3495(91)82027-6. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DiMilla P. A., Stone J. A., Quinn J. A., Albelda S. M., Lauffenburger D. A. Maximal migration of human smooth muscle cells on fibronectin and type IV collagen occurs at an intermediate attachment strength. J Cell Biol. 1993 Aug;122(3):729–737. doi: 10.1083/jcb.122.3.729. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Diamond M. S., Springer T. A. The dynamic regulation of integrin adhesiveness. Curr Biol. 1994 Jun 1;4(6):506–517. doi: 10.1016/s0960-9822(00)00111-1. [DOI] [PubMed] [Google Scholar]
- Duband J. L., Dufour S., Yamada S. S., Yamada K. M., Thiery J. P. Neural crest cell locomotion induced by antibodies to beta 1 integrins. A tool for studying the roles of substratum molecular avidity and density in migration. J Cell Sci. 1991 Apr;98(Pt 4):517–532. doi: 10.1242/jcs.98.4.517. [DOI] [PubMed] [Google Scholar]
- Dunlevy J. R., Couchman J. R. Controlled induction of focal adhesion disassembly and migration in primary fibroblasts. J Cell Sci. 1993 Jun;105(Pt 2):489–500. doi: 10.1242/jcs.105.2.489. [DOI] [PubMed] [Google Scholar]
- Dunlevy J. R., Couchman J. R. Interleukin-8 induces motile behavior and loss of focal adhesions in primary fibroblasts. J Cell Sci. 1995 Jan;108(Pt 1):311–321. doi: 10.1242/jcs.108.1.311. [DOI] [PubMed] [Google Scholar]
- Filardo E. J., Brooks P. C., Deming S. L., Damsky C., Cheresh D. A. Requirement of the NPXY motif in the integrin beta 3 subunit cytoplasmic tail for melanoma cell migration in vitro and in vivo. J Cell Biol. 1995 Jul;130(2):441–450. doi: 10.1083/jcb.130.2.441. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Frelinger A. L., 3rd, Du X. P., Plow E. F., Ginsberg M. H. Monoclonal antibodies to ligand-occupied conformers of integrin alpha IIb beta 3 (glycoprotein IIb-IIIa) alter receptor affinity, specificity, and function. J Biol Chem. 1991 Sep 15;266(26):17106–17111. [PubMed] [Google Scholar]
- Ginsberg M. H., Du X., Plow E. F. Inside-out integrin signalling. Curr Opin Cell Biol. 1992 Oct;4(5):766–771. doi: 10.1016/0955-0674(92)90099-x. [DOI] [PubMed] [Google Scholar]
- Goodman S. L., Risse G., von der Mark K. The E8 subfragment of laminin promotes locomotion of myoblasts over extracellular matrix. J Cell Biol. 1989 Aug;109(2):799–809. doi: 10.1083/jcb.109.2.799. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hammarback J. A., McCarthy J. B., Palm S. L., Furcht L. T., Letourneau P. C. Growth cone guidance by substrate-bound laminin pathways is correlated with neuron-to-pathway adhesivity. Dev Biol. 1988 Mar;126(1):29–39. doi: 10.1016/0012-1606(88)90235-7. [DOI] [PubMed] [Google Scholar]
- Hayashi Y., Haimovich B., Reszka A., Boettiger D., Horwitz A. Expression and function of chicken integrin beta 1 subunit and its cytoplasmic domain mutants in mouse NIH 3T3 cells. J Cell Biol. 1990 Jan;110(1):175–184. doi: 10.1083/jcb.110.1.175. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hughes P. E., O'Toole T. E., Ylänne J., Shattil S. J., Ginsberg M. H. The conserved membrane-proximal region of an integrin cytoplasmic domain specifies ligand binding affinity. J Biol Chem. 1995 May 26;270(21):12411–12417. doi: 10.1074/jbc.270.21.12411. [DOI] [PubMed] [Google Scholar]
- Huttenlocher A., Sandborg R. R., Horwitz A. F. Adhesion in cell migration. Curr Opin Cell Biol. 1995 Oct;7(5):697–706. doi: 10.1016/0955-0674(95)80112-x. [DOI] [PubMed] [Google Scholar]
- Hynes R. O. Integrins: versatility, modulation, and signaling in cell adhesion. Cell. 1992 Apr 3;69(1):11–25. doi: 10.1016/0092-8674(92)90115-s. [DOI] [PubMed] [Google Scholar]
- Juliano R. L., Haskill S. Signal transduction from the extracellular matrix. J Cell Biol. 1993 Feb;120(3):577–585. doi: 10.1083/jcb.120.3.577. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kassner P. D., Alon R., Springer T. A., Hemler M. E. Specialized functional properties of the integrin alpha 4 cytoplasmic domain. Mol Biol Cell. 1995 Jun;6(6):661–674. doi: 10.1091/mbc.6.6.661. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kuijpers T. W., Mul E. P., Blom M., Kovach N. L., Gaeta F. C., Tollefson V., Elices M. J., Harlan J. M. Freezing adhesion molecules in a state of high-avidity binding blocks eosinophil migration. J Exp Med. 1993 Jul 1;178(1):279–284. doi: 10.1084/jem.178.1.279. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LaFlamme S. E., Akiyama S. K., Yamada K. M. Regulation of fibronectin receptor distribution. J Cell Biol. 1992 Apr;117(2):437–447. doi: 10.1083/jcb.117.2.437. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Landegren U. Measurement of cell numbers by means of the endogenous enzyme hexosaminidase. Applications to detection of lymphokines and cell surface antigens. J Immunol Methods. 1984 Mar 16;67(2):379–388. doi: 10.1016/0022-1759(84)90477-0. [DOI] [PubMed] [Google Scholar]
- Lauffenburger D. A., Horwitz A. F. Cell migration: a physically integrated molecular process. Cell. 1996 Feb 9;84(3):359–369. doi: 10.1016/s0092-8674(00)81280-5. [DOI] [PubMed] [Google Scholar]
- Lee J., Leonard M., Oliver T., Ishihara A., Jacobson K. Traction forces generated by locomoting keratocytes. J Cell Biol. 1994 Dec;127(6 Pt 2):1957–1964. doi: 10.1083/jcb.127.6.1957. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Loftus J. C., O'Toole T. E., Plow E. F., Glass A., Frelinger A. L., 3rd, Ginsberg M. H. A beta 3 integrin mutation abolishes ligand binding and alters divalent cation-dependent conformation. Science. 1990 Aug 24;249(4971):915–918. doi: 10.1126/science.2392682. [DOI] [PubMed] [Google Scholar]
- Marcantonio E. E., Guan J. L., Trevithick J. E., Hynes R. O. Mapping of the functional determinants of the integrin beta 1 cytoplasmic domain by site-directed mutagenesis. Cell Regul. 1990 Jul;1(8):597–604. doi: 10.1091/mbc.1.8.597. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Matsumoto K., Matsumoto K., Nakamura T., Kramer R. H. Hepatocyte growth factor/scatter factor induces tyrosine phosphorylation of focal adhesion kinase (p125FAK) and promotes migration and invasion by oral squamous cell carcinoma cells. J Biol Chem. 1994 Dec 16;269(50):31807–31813. [PubMed] [Google Scholar]
- McDonald J. A., Quade B. J., Broekelmann T. J., LaChance R., Forsman K., Hasegawa E., Akiyama S. Fibronectin's cell-adhesive domain and an amino-terminal matrix assembly domain participate in its assembly into fibroblast pericellular matrix. J Biol Chem. 1987 Mar 5;262(7):2957–2967. [PubMed] [Google Scholar]
- Murphy-Ullrich J. E., Hök M. Thrombospondin modulates focal adhesions in endothelial cells. J Cell Biol. 1989 Sep;109(3):1309–1319. doi: 10.1083/jcb.109.3.1309. [DOI] [PMC free article] [PubMed] [Google Scholar]
- O'Toole T. E., Katagiri Y., Faull R. J., Peter K., Tamura R., Quaranta V., Loftus J. C., Shattil S. J., Ginsberg M. H. Integrin cytoplasmic domains mediate inside-out signal transduction. J Cell Biol. 1994 Mar;124(6):1047–1059. doi: 10.1083/jcb.124.6.1047. [DOI] [PMC free article] [PubMed] [Google Scholar]
- O'Toole T. E., Loftus J. C., Du X. P., Glass A. A., Ruggeri Z. M., Shattil S. J., Plow E. F., Ginsberg M. H. Affinity modulation of the alpha IIb beta 3 integrin (platelet GPIIb-IIIa) is an intrinsic property of the receptor. Cell Regul. 1990 Nov;1(12):883–893. doi: 10.1091/mbc.1.12.883. [DOI] [PMC free article] [PubMed] [Google Scholar]
- O'Toole T. E., Loftus J. C., Plow E. F., Glass A. A., Harper J. R., Ginsberg M. H. Efficient surface expression of platelet GPIIb-IIIa requires both subunits. Blood. 1989 Jul;74(1):14–18. [PubMed] [Google Scholar]
- Pasqualini R., Hemler M. E. Contrasting roles for integrin beta 1 and beta 5 cytoplasmic domains in subcellular localization, cell proliferation, and cell migration. J Cell Biol. 1994 Apr;125(2):447–460. doi: 10.1083/jcb.125.2.447. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Plow E. F., McEver R. P., Coller B. S., Woods V. L., Jr, Marguerie G. A., Ginsberg M. H. Related binding mechanisms for fibrinogen, fibronectin, von Willebrand factor, and thrombospondin on thrombin-stimulated human platelets. Blood. 1985 Sep;66(3):724–727. [PubMed] [Google Scholar]
- Reszka A. A., Hayashi Y., Horwitz A. F. Identification of amino acid sequences in the integrin beta 1 cytoplasmic domain implicated in cytoskeletal association. J Cell Biol. 1992 Jun;117(6):1321–1330. doi: 10.1083/jcb.117.6.1321. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schmidt C. E., Horwitz A. F., Lauffenburger D. A., Sheetz M. P. Integrin-cytoskeletal interactions in migrating fibroblasts are dynamic, asymmetric, and regulated. J Cell Biol. 1993 Nov;123(4):977–991. doi: 10.1083/jcb.123.4.977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Springer T. A. Traffic signals on endothelium for lymphocyte recirculation and leukocyte emigration. Annu Rev Physiol. 1995;57:827–872. doi: 10.1146/annurev.ph.57.030195.004143. [DOI] [PubMed] [Google Scholar]
- Stossel T. P. On the crawling of animal cells. Science. 1993 May 21;260(5111):1086–1094. doi: 10.1126/science.8493552. [DOI] [PubMed] [Google Scholar]
- Woods V. L., Jr, Oh E. H., Mason D., McMillan R. Autoantibodies against the platelet glycoprotein IIb/IIIa complex in patients with chronic ITP. Blood. 1984 Feb;63(2):368–375. [PubMed] [Google Scholar]
- Wu C., Keivens V. M., O'Toole T. E., McDonald J. A., Ginsberg M. H. Integrin activation and cytoskeletal interaction are essential for the assembly of a fibronectin matrix. Cell. 1995 Dec 1;83(5):715–724. doi: 10.1016/0092-8674(95)90184-1. [DOI] [PubMed] [Google Scholar]
- Ylänne J., Chen Y., O'Toole T. E., Loftus J. C., Takada Y., Ginsberg M. H. Distinct functions of integrin alpha and beta subunit cytoplasmic domains in cell spreading and formation of focal adhesions. J Cell Biol. 1993 Jul;122(1):223–233. doi: 10.1083/jcb.122.1.223. [DOI] [PMC free article] [PubMed] [Google Scholar]