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@alicefrolov.bsky.socialSep 10, 2026, 5:07 PM

Sharing a visualization from ongoing work on cancer stem cell (CSC) clonal dynamics under therapeutic pressure.

#CancerStemCells #TumorHeterogeneity #ClonalEvolution #MinimalResidualDisease #TumorPlasticity #DrugTolerantPersisters #SingleCellGenomics #PhylogeneticReconstruction

Sharing a visualization from ongoing work on cancer stem cell (CSC) clonal dynamics under therapeutic pressure. Figure: "Therapy reshapes clonal hierarchy via stem-like subclone selection" Subtitle: "Ranked clonal fraction of tumor subclones across treatment phases; stem-marked clones rise under selective pressure" The chart is a phylogenetic bump plot (Muller-style ranked clonal flow) tracking the relative clonal fraction of individual subclones across sequential treatment phases: baseline, on-treatment, minimal residual disease (MRD), and relapse. Each ribbon corresponds to a distinct subclone, with vertical band thickness encoding clonal fraction and vertical ordering encoding rank. Subclones carrying stem-associated marker states (e.g., high ALDH activity, CD133/CD44 enrichment, quiescence-linked transcriptional programs) are highlighted to distinguish them from bulk proliferative lineages. The illustrated trajectory recapitulates a well-documented pattern: cytotoxic selection preferentially depletes proliferative, differentiation-committed subclones while sparing slow-cycling, stem-marked populations. During the MRD window, stem-like ribbons ascend in rank despite overall tumor contraction, consistent with therapy-tolerant persister states buffered by quiescence, enhanced drug efflux, and reinforced self-renewal signaling (WNT, NOTCH, Hedgehog). At relapse, these ascended subclones seed the reconstituted hierarchy, producing a repopulated tumor with an altered clonal architecture rather than a faithful reconstruction of the baseline composition. I want to emphasize that the underlying data here are simulated. The intent is to render a literature-grounded trend in an interpretable topological format, not to present empirical measurements. The parameterization draws on reported CSC plasticity and selection dynamics, but ribbon values are synthetic.