Additional analysis of BCL11A and CHD8 mRNA expression across the METABRIC and TCGA cancer datasets confirmed this observation and showed that BCL11A is upregulated in basal (TNBC) breast tumour samples compared to luminal breast tumours, whereas CHD8 shows no differences in expression across different breast tumours (Appendix Fig. S1E). This evidence concerns the gene BCL11A and breast neoplasm.