EGF and neoplasm: We found that EGFR and TNFRSF1A, receptors of the EGF and TNFα cell signaling pathways, respectively, were expressed in the bridge and mesenchymal cells from IC-pPDXC-63 (Fig. 3B), in the mesenchymal cells of SK-N-SH and more generally associated to mesenchymal tumor identity using a set of 25 neuroblastoma cell lines (Fig. 3C).