Triple‐negative breast cancer (TNBC) cells in human express a specific gene signature and their self‐renewal depends on canonical Wnt/β‐catenin signalling.A.Human.

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Triple‐negative breast cancer (TNBC) cells in human express a specific gene signature and their self‐renewal depends on canonical Wnt/β‐catenin signalling.A.Human TNBC cell lines (MDA‐231, BTL10, MA‐11) and other non‐triple negative (TN) mammary cell lines tested by qt‐PCR for expression of WNT10B and self‐renewal markers. Triple‐negative breast cancer (TNBC) cells in human express a specific gene signature and their self‐renewal depends on canonical Wnt/β‐catenin signalling.A.Human TNBC cell lines (MDA‐231, BTL10, MA‐11) and other non‐triple negative (TN) mammary cell lines tested by qt‐PCR for expression of WNT10B and self‐renewal markers. Relative mRNA levels are normalized to human MCF7 cells. Error bars represent the means and the standard deviations from three independent experiments.B–E.Proliferation of human TNBC cells (B, D) or human non‐TN breast cancer cells (C, E) upon treatment with the Wnt/β‐catenin inhibitor ICG‐001 (10 µM in 1% DMSO). Error bars represent the means and the standard deviations from three independent experiments. In B, ***p value = 0.0005 versus control‐treated cells (Student's t‐test). In D, ***p value = 0.0007 versus control‐treated cells (Student's t‐test).F.Quantification of proliferation of human MDA‐MB 231 and MCF7 cells upon treatment with the Wnt pathway inhibitors ICG‐001 or Wnt‐C59 compared to vehicle control (DMSO). Error bars represent the means and the standard deviations from three independent experiments; **p‐value = 0.004 (ANOVA).G.Phase contrast images of BTL10 cells in adherent (upper panel) and mammosphere cell culture (lower panel) upon treatment with the Wnt/β‐catenin inhibitor ICG‐001 (10 µM in 1% DMSO, n = 3). p Values of <0.05 were considered to be statistically significant (B, D, F). Peter Wend et al. EMBO Mol Med. 2013;5:264-279 © as stated in the article, figure or figure legend