Among many deregulated genes detected by cDNA microarray analysis of transcript profiles from anoikis‐resistant human tumour cells induced by 5‐azacytidine or fIR, we identified elevation of gene transcripts regulated by the interferon signalling pathway and IFNγ itself (but not IFNβ) as being capable of inducing the anoikis‐resistant state. The gene discussed is IFNB1; the disease is neoplasm.