NECTIN1 and neoplasm: Q-PCR revealed that all four Nectins had elevated levels in tumour samples, although significance was not reached (Nectin-1: tumour 304+/−96 versus background 213+/−103); Nectin-2: tumour 89.4+/−72.1 versus background 1.820+/−0.727; Nectin-3: tumour 1507+/−953, background 250+/−117; Nectin-4: tumour 0.242+/−0.122 versus background 0.134+/−0.106).