More recently, Ribeiro et al. reported that the exosomes secreted from healthy pancreatic β cells had the ability to suppress aggregation of islet amyloid polypeptide (IAPP) in neighboring β cells, whereas exosomes secreted from β cells of the T2DM pancreas failed to do this, mimicking the pathophysiology of T2DM [31]. The gene discussed is IAPP; the disease is type 2 diabetes mellitus.