Abstract
We are deeply interested in the recent findings on β-arrestin 2. Liu et al demonstrated that β-arrestin 2 knockout provides significant protection in diabetic nephropathy, underscoring its potential as a promising therapeutic target for diabetic nephropathy treatment. Furthermore, the role of β-arrestin 2 in metabolic regulation is equally critical, particularly in insulin signaling, hepatic glucose production, and adipose tissue function. Although β-arrestin 2 plays a distinct role in metabolism and kidney protection, its tissue-specific regulation opens up valuable avenues for developing targeted therapeutic strategies centered on β-arrestin 2.