SEMA3C and neoplasm: Increased expression of SEMA3C is associated with poor prognosis and tumor progression in a number of cancers (Yamada et al, 1997; Martin‐Satue & Blanco, 1999; Konno, 2001; Galani et al, 2002; Herman & Meadows, 2007; Miyato et al, 2012; Xu et al, 2017).