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. 2002 Oct 7;87(8):859–867. doi: 10.1038/sj.bjc.6600545

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Copyright © 2002 Cancer Research UK

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Cell migration towards LAP is αvβ6-dependent. Cells were allowed to migrate towards LAP in haptotactic migration assays. To assess integrin specificity of migration, integrin-blocking antibodies against αv (L230), αvβ5 (P1F6), αvβ6 (10D5), or a control antibody (W632) were added to VB6, C1 and H357 cells prior to plating into wells. Following 8 h incubation, the cells in the lower chamber (including those attached to the undersurface of the membrane) were trypsinised and counted on a Casy 1 counter (Sharfe System GmbH, Germany). Results for the cell lines are expressed relative to VB6 migration following incubation with an irrelevant control antibody (=100). Figures show representative experiments performed in quadruplicate. Error bars represent standard deviation. (A) VB6 cells show increased migration towards LAP. Comparison of migration of VB6, C1 and H357 cells towards LAP. Migration is higher in the αvβ6 expressing VB6 cells. αv-negative H357 cells did not migrate significantly. (B) Migration towards LAP is αvβ6-dependent. Migration of VB6 and C1 cells was inhibited completely by antibody inhibition of αvβ6 or αv. Antibodies inhibiting αvβ5 produced no effect. These data suggest that migration of VB6 and C1 cells is modulated solely through αvβ6.