TGFB1 and breast cancer: Furthermore, RNA-seq analysis of human hepatocellular carcinoma (HepG2) cells silenced for hnRNP E1 (Fig S4A) and from murine 4T1 breast cancer cells treated with TGFβ (Fig S4B) also showed neuron-related factor enrichment, although these models do not display regulation for Platr18/Sema4F.