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BNC2 as a putative transcriptional coordinator linking energy state to neural circuits
Zixu Zhang1,2, Shengru Hu1,2, Kaiyi Hua2
1Beijing Life Science Academy (BLSA), Beijing 102209, China.
Abstract:
Energy homeostasis relies on interconnected brain circuits that integrate hormonal signals with behavioral outputs. Building upon the established roles of canonical transcriptional regulators like STAT3 and FOXO1 in metabolic neurons, we synthesize emerging evidence positioning basonuclin-2 (BNC2), a deeply conserved zinc-finger transcription factor, as a putative coordinator of energy balance. Spatial transcriptomic mapping highlights selective BNC2 expression within the hypothalamic arcuate nucleus and ventral pallidum. Recent functional studies demonstrate that hypothalamic BNC2 neurons suppress appetite via leptin-driven GABAergic inhibition of AgRP/NPY neurons, whereas ventral pallidum BNC2 neurons modulate reward-driven food intake. Together, these findings suggest BNC2 functions as a critical bridge between homeostatic and hedonic feeding circuits. Future investigations addressing isoform specificity, direct hormonal sensing, and human genetic relevance will be essential to evaluate BNC2 as a therapeutic target for obesity and related metabolic disorders.
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