RAB37 and cancer: To verify the suppressive role of Rab37 in cancer stemness, we next performed 3D sphere culture using four established stable clones including empty vector control (EV), Flag-Rab37 wild-type (Rab37WT), Flag-Rab37-Q89L (Rab37Q89L) constitutively active mutant and Flag-Rab37-T43N (Rab37T43N) dominant negative mutant cells.