NKX2-3 and brain neoplasm: The activation of NKX2‐3 and MYCN, which are implicated in cell differentiation and oncogenesis (Kramer, Ribeiro, Arsenian‐Henriksson, Deller, & Rohrer, 2016; Nagel et al., 2017), could be associated with previously reported brain protein expression alterations related to neurogenesis and brain plasticity demonstrated by Salford’s group (Nittby, Grafstrom, et al., 2008) and our group (Fragopoulou et al., 2012), as well as with increased risk for brain tumor development (Hardell & Carlberg, 2009) following exposure to MP radiation.