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 overexpression may promote tumor growth and metastasis. By participating in intracellular signaling pathways influenced by hormones such as estrogen, HUNK plays a key role in cancer biology and is being investigated as a potential therapeutic target.