PTEN Prevents Endosome-to-Plasma Membrane Recycling of GLUT1
(A) A representative western blot showing the shRNA-mediated knockdown of PTEN in HeLa cells.
(B) PTEN-depleted HeLa cells were fixed and imaged using a confocal microscope after staining with antibodies against GLUT1. Representative images are shown, Scale bars, 5 μm.
(C) HeLa cells were transduced with PTEN shRNAs alone or in combination with SNX27 shRNAs, and a representative western blot showing the knockdown of PTEN and SNX27 is shown.
(D) HeLa cells transduced with the indicated shRNAs were fixed and imaged using a confocal microscope after staining with antibodies against GLUT1. Representative images are shown. Scale bars, 5 μm.
(E) Quantification of plasma membrane (PM)-to-cytoplasmic (Cyt) ratio of GLUT1 intensity per each cell was plotted. Error bars indicate SD (n = 100 cells). ∗∗∗p < 0.001 by Student’s t test.
(F) HeLa cells transduced with PTEN shRNA were transfected with shRNA-resistant PTEN WT or the indicated mutants and then processed for staining with GLUT1. Representative images are shown. Scale bars, 5 μm.
(G) Quantification of PM-to-Cyt ratio of GLUT1 intensity per each cell was plotted. Error bars indicate SD (n = 40 cells). ∗∗∗p < 0.001 by Student’s t test.