Caveolin-1 and caveolae differently polarized in cell migration in a variety of models, and Caveolin-1 expression has been shown to modulate cell migration quantitatively. PTRF / Cavin-1 is a cytoplasmic protein is now established to be also required for the formation of caveola. Here we test the effects of PTRF expression on cell migration. Using fluorescence imaging , quantitative General Recombinant Proteins proteomics, and cell migration tests we showed that PTRF / Cavin-1 polarization modulated cellular and subcellular localization of Rac1 and Caveolin-1 in cell migration and recruitment PKCα caveola. PTRF / Cavin-1 quantitative cell migration is reduced, and induced epithelial mesenchymal refund. Similar to Caveolin-1, polarization PTRF / Cavin-1 depending on the mode of migration. By selectively manipulating PTRF / Cavin-1 and Caveolin-1 expression (and therefore the formation of caveola) in several cell systems, we uncover caveola-independent functions for both...