BAF60A governs beta cell identity to control systemic glucose homeostasis

The SWI/SNF chromatin remodeling complex subunit BAF60A plays a vital role in maintaining functional pancreatic $\beta$-cell identity and regulating systemic glucose homeostasis. By modulating chromatin accessibility, BAF60A enables the transcriptional machinery to access core $\beta$-cell genes responsible for insulin synthesis, nutrient sensing, and glucose-stimulated insulin secretion (GSIS). Loss or dysregulation of BAF60A leads to $\beta$-cell dedifferentiation, impaired metabolic sensing, and compromised insulin release, triggering severe hyperglycemia and glucose intolerance. Unraveling the epigenetic mechanisms through which BAF60A preserves lineage-specific gene expression offers key insights into the pathophysiology of type 2 diabetes and opens new avenues for therapeutic strategies targeted at restoring functional $\beta$-cell mass. The SWI/SNF chromatin remodeling complex subunit BAF60A plays a vital role in maintaining functional pancreatic $\beta$-cell identity and regulating systemic glucose homeostasis. By modulating chromatin accessibility, BAF60A enables the transcriptional machinery to access core $\beta$-cell genes responsible for insulin synthesis, nutrient sensing, and glucose-stimulated insulin secretion (GSIS). Loss or dysregulation of BAF60A leads to $\beta$-cell dedifferentiation, impaired metabolic sensing, and compromised insulin release, triggering severe hyperglycemia and glucose intolerance. Unraveling the epigenetic mechanisms through which BAF60A preserves lineage-specific gene expression offers key insights into the pathophysiology of type 2 diabetes and opens new avenues for therapeutic strategies targeted at restoring functional $\beta$-cell mass.