Fig 1: Cell morphology, lineage tracing, FACS sort and proliferation rates of mucoepidermoid tumor before and after sorting.Mucoepidermoid tumor cells at passage 0, Scale bar: 100 µm (a), BM-MSCs at passage 6, Scale bar: 100 µm (b), a representation of the merged images of MUC 1 and MAML2 before, Scale bar: 20 µm (c, d) and after, Scale bar: 50 µm (h, i) sort, flow cytometry sorting for a panel of mesenchymal stromal cell markers (e), post-sorting of MEi cells after 24 hours recovery, Scale bar: 500 µm (f) and a representative image of expanded post-sorted p12+5 MEi cells, Scale bar: 500 µm (g), cell proliferation rates and doubling times of unsorted and sorted cells (black and red respectively) versus BM-MSC (blue) (j). Colored circle indicates the raw datasets for the number of cells in each well; crosses and error bars indicate means and standard deviations.