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Map4k4 signaling nodes in metabolic and cardiovascular diseases #MMPMID27160798
Virbasius JV; Czech MP
Trends Endocrinol Metab 2016[Jul]; 27 (7): 484-92 PMID27160798show ga
Map4k4, originally identified in siRNA screens and characterized by tissue specific gene deletions, is emerging as a regulator of glucose homeostasis and cardiovascular health. Recent studies have shown that Map4k4 gene ablation or inhibition of its kinase activity attenuates hyperglycemia and plaque formation in mouse models of insulin resistance and atherosclerosis, and suggest roles for Map4k4 in multiple signaling systems, including NF?B activation, small GTPase regulation, the Hippo cascade, and regulation of cell dynamics by FERM domain proteins. This new and promising area of inquiry raises key questions that need to be addressed in the future, such as defining which of the above or other effectors mediate Map4k4 control of metabolic and vascular functions, and identifying upstream activators of Map4k4.