ITGA1 and posterior cortical atrophy: An unbiased genome‐wide co‐expression analysis of large PCa cohort datasets identified the transcription factor TEAD1 as a key regulator of ITGA1 and ITGA2 expression in PCa cells while TEAD1 loss phenocopied the dual loss of α1‐ and α2‐integrins in vitro and in vivo.