Abstract:
:The efficacy of prospective cancer treatments is routinely estimated by in vitro cell-line proliferation screens. However, it is unclear whether tumor aggressiveness and patient survival are influenced more by the proliferative or the migratory properties of cancer cells. To address this question, we experimentally measured proliferation and migration phenotypes across more than 40 breast cancer cell-lines. Based on the latter, we built and validated individual predictors of breast cancer proliferation and migration levels from the cells' transcriptomics. We then apply these predictors to estimate the proliferation and migration levels of more than 1000 TCGA breast cancer tumors. Reassuringly, both estimates increase with tumor's aggressiveness, as qualified by its stage, grade, and subtype. However, predicted tumor migration levels are significantly more strongly associated with patient survival than the proliferation levels. We confirmed these findings by conducting siRNA knock-down experiments on the highly migratory MDA-MB-231 cell lines and deriving gene knock-down based proliferation and migration signatures. We show that cytoskeletal drugs might be more beneficial in patients with high predicted migration levels. Taken together, these results testify to the importance of migration levels in determining patient survival.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Nair NU,Das A,Rogkoti VM,Fokkelman M,Marcotte R,de Jong CG,Koedoot E,Lee JS,Meilijson I,Hannenhalli S,Neel BG,de Water BV,Le Dévédec SE,Ruppin Edoi
10.1038/s41598-019-47440-wsubject
Has Abstractpub_date
2019-07-29 00:00:00pages
10989issue
1issn
2045-2322pii
10.1038/s41598-019-47440-wjournal_volume
9pub_type
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