HUNK (Hormonally Up-Regulated Neu-Associated Kinase): HUNK is a gene that encodes a protein kinase regulated by hormonal signals. It has been associated with breast cancer, where its overexpression can promote tumour growth and metastasis. By participating in intracellular signalling pathways influenced by hormones such as oestrogen, HUNK plays a significant role in cancer biology and is being explored as a potential therapeutic target.