PS10 is a novel, potent and ATP-competitive pan-PDK?inhibitor, inhibits all PDK isoforms with?IC50 of 0.8 μM, 0.76 μM, 2.1 μM and 21.3 μM for PDK2, PDK4, PDK1, and PDK3, respectively. PS10 shows high affinity for PDK2 (Kd= 239 nM) than for Hsp90 (Kd= 47 μM). PS10 improves glucose tolerance, stimulates myocardial carbohydrate oxidation in diet-induced obesity. PS10 has the potential for the investigation of diabetic cardiomyopathy.PDK: pyruvate dehydrogenase kinase