{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n Early B‐cell factor 2 (EBF2) is an atypical helix–loop–helix transcription factor that plays a central role in several diverse biological processes. In the adipose lineage, EBF2 is instrumental in establishing brown fat cell fate by modulating PPARγ binding and activating a thermogenic gene program. In brown adipocytes and their precursors, EBF2 recruits transcriptional machinery and coactivators (often in partnership with long noncoding RNAs such as Blnc1) to drive the expression of brown fat–selective genes, thereby promoting energy expenditure and proper thermogenic function. Loss or deficiency of EBF2 in adipose precursors results in diminished brown fat characteristics and impaired thermogenesis."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "6"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Beyond its critical actions in adipogenesis, EBF2 is also required for proper neural development. In the central nervous system, EBF2 governs neuronal migration, differentiation, and survival—processes essential for the formation of functional circuits in regions such as the cerebellum and neocortex. For instance, EBF2 deficiency has been linked to defective migration of gonadotropin‐releasing hormone–synthesizing neurons and impaired Purkinje cell maturation, leading to cerebellar malformation and consequent motor deficits."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "7", "end_ref": "10"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Furthermore, genome‐wide association studies have identified EBF2 as one of several susceptibility loci implicated in connective tissue disorders such as inguinal hernia"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "11"}]}, {"type": "t", "text": ", and in the context of osteosarcoma, EBF2 upregulation has been associated with enhanced tumor cell survival, increased migration/invasion, and resistance to apoptosis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "12"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Collectively, the available evidence establishes EBF2 as a multifaceted transcriptional regulator whose actions are critical not only for the induction of a thermogenic, energy‐dissipating brown fat program but also for the proper development and function of specific neuronal populations, while also contributing to disease states when dysregulated.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Sona Rajakumari, Jun Wu, Jeff Ishibashi, et al. 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