RAP2 GTPase is involved in Hippo signaling regulation by tubulin cytoskeleton dynamics.A, WT, RAP2A/B/C tKO, and MAP4K4/6/7 tKO HEK293A cells were treated with Taxol (3 μM) for 120 min. B and C, Representative bright filed images (B) and cell viability MTS test (C) showed cell survival of WT and RAP2A/B/C tKO MCF10AT cells treated with 50 nM of Taxol for 24 h. For the MTS assay, a Two-way ANOVA and Tukey's multiple comparison test was applied. Scale bar, 300 μm. The data are reported as mean ± SD. D, transwell migration assay on WT and RAP2A/B/C tKO MCF10AT cells treated with 50 nM of Taxol for 24 h. Scale bar, 100 μm. E, quantification of cell migration assay. The data are reported as mean ± SD. Two-way ANOVA and Tukey's multiple comparison tests were used.