In particular, while the data presented here examines the role of GCNT1 in the formation of metastatic tumours by disseminated prostate tumour cells, to fully study the in vivo role of GCNT1 in prostate cancer metastasis it will be necessary to utilise a repertoire of mouse models encompassing different stages in the metastatic cascade. The gene discussed is GCNT1; the disease is prostate carcinoma.