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lüll The LKB1/AMPK polarity pathway Mirouse V; Billaud MFEBS Lett 2011[Apr]; 585 (7): 981-5The LKB1 tumor suppressor kinase is an activator of the AMP-activated protein kinase (AMPK), a metabolic gauge that responds to variations of cellular energetic levels by favoring catabolic versus anabolic processes. Recent studies have provided substantial evidence that LKB1 and AMPK control cell polarity from invertebrates to mammals. This review examines how the LKB1-AMPK pathway, in conjunction with other positional signals, converts energy-sensing information into the activation of Myosin II to maintain epithelial-cell architecture but also to complete cell division. This molecular link between polarity and metabolism may constitute an ancient stress-response protective mechanism that was co-opted for tumor suppression during evolution.|*Cell Polarity[MESH]|*Signal Transduction[MESH]|AMP-Activated Protein Kinases/*metabolism[MESH]|Animals[MESH]|Humans[MESH]|Neoplasms/enzymology/pathology[MESH]|Protein Serine-Threonine Kinases/*metabolism[MESH] |