“… 9 , 12 , 13 , 43 , 57 In metastasis, recent studies have integrated lineage tracing and computational algorithms in mouse models to quantitatively track properties of metastatic clones. 59 , 60 , 61 Similar to the findings reported in therapy resistance, pre-existing, heritable cell-intrinsic states predicted the metastatic potential of individual clones. 59 , 60 The clonal differences driving resistance and metastasis likely originate as a consequence of interplay between genetic alterations and non-genetic mechanisms, but the precise sequence of events remains to be elucidated.…”