Koh Ho-Jin
Applied Physiology Division, Department of Exercise Science, Arnold School of Public Health, Univer sity of South Carolina, Columbia, SC, USA.
Ann Pediatr Endocrinol Metab. 2016 Jun;21(2):61-5. doi: 10.6065/apem.2016.21.2.61. Epub 2016 Jun 30.
AMP-activated protein kinase (AMPK) is a Ser/Thr kinase that has been thought to be an important mediator for exercise-stimulated glucose uptake in skeletal muscle. Liver kinase B1 (LKB1) is an upstream kinase for AMPK and AMPK-related protein kinases, of which the function in skeletal muscle has not been well documented. Our group and others have generated mice lacking AMPK activity in skeletal muscle, as well as muscle-specific LKB1 knockout mice. In this review, we discuss the potential role of AMPK and LKB1 in regulating exercise-stimulated glucose uptake in skeletal muscle. We also discuss our recent study, demonstrating the molecular mechanism of obesity-induced development of skeletal muscle insulin resistance.
AMP激活的蛋白激酶(AMPK)是一种丝氨酸/苏氨酸激酶,一直被认为是运动刺激骨骼肌摄取葡萄糖的重要介质。肝脏激酶B1(LKB1)是AMPK及AMPK相关蛋白激酶的上游激酶,其在骨骼肌中的功能尚未得到充分证实。我们团队及其他团队已培育出骨骼肌中缺乏AMPK活性的小鼠,以及肌肉特异性LKB1基因敲除小鼠。在这篇综述中,我们讨论了AMPK和LKB1在调节运动刺激骨骼肌摄取葡萄糖方面的潜在作用。我们还讨论了我们最近的研究,该研究揭示了肥胖诱导骨骼肌胰岛素抵抗发生发展的分子机制。