Deficiency of LKB1 in skeletal muscle prevents AMPK activation and glucose uptake during contraction.

Abstract excerpt

Recent studies indicate that the LKB1 tumour suppressor protein kinase is the major "upstream" activator of the energy sensor AMP-activated protein kinase (AMPK). We have used mice in which LKB1 is expressed at only approximately 10% of the normal levels in muscle and most other tissues, or that lack LKB1 entirely in skeletal muscle. Muscle expressing only 10% of the normal level of LKB1 had significantly reduced...

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