SH2B2 is an adaptor protein containing SH2 and PH domains that mediates signaling from tyrosine kinase receptors, particularly in insulin and cytokine pathways 1. Unlike its family member SH2B1, SH2B2 is not required for normal energy homeostasis or glucose metabolism in mice 2. However, SH2B2 functions in hepatic lipid metabolism and VLDL secretion regulation 3. In colon adenocarcinoma, elevated SH2B2 expression correlates with poor prognosis and enhanced cell proliferation, migration, and invasion, suggesting an oncogenic role 4. SH2B2 mutations are associated with local recurrence risk in ductal carcinoma in situ, particularly affecting tissue structural maintenance 5. Mechanistically, SH2B2 may regulate corticolimbic white matter integrity through a TrkB signaling axis, with implications for psychiatric disorders 6. In hypertension research, SH2B2 has been identified as a potential drug target in blood pressure regulation pathways 7. SH2B2 represents a pleiotropic gene with tissue-specific functions in metabolic regulation and disease pathogenesis, with emerging relevance as a prognostic and therapeutic target in cancer.