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The TBK1/IKKe Inhibitor Amlexanox Improves Dyslipidemia and Prevents Atherosclerosis

ABSTRACT: Cardiovascular diseases, especially atherosclerosis and its complications, are a leading cause of death. Inhibition of the non-canonical IkB kinases TBK1 and IKKe with amlexanox restores insulin sensitivity and glucose homeostasis in diabetic mice and human subjects. Here we report that amlexanox improves diet-induced hypertriglyceridemia and hypercholesterolemia in Western diet (WD)-fed Ldlr-/- mice, and protects against atherogenesis. Amlexanox ameliorates dyslipidemia, inflammation and vascular dysfunction through synergistic actions that involve upregulation of bile acid synthesis to increase cholesterol excretion. Transcriptomic profiling demonstrates an elevated expression of key bile acid synthesis genes. Furthermore, we found that amlexanox attenuates monocytosis, eosinophilia and vascular dysfunction during WD-induced atherosclerosis. These findings demonstrate the potential of amlexanox as a new therapy for hypercholesterolemia and atherosclerosis.

ORGANISM(S): Mus musculus

PROVIDER: GSE209621 | GEO | 2022/07/27

REPOSITORIES: GEO

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Project description:Atherosclerosis is the preliminary cause of coronary artery disease, one of the diseases that ac-count for the largest number of fatal mortalities. Physical activity is an effective strategy to restrain atherosclerosis from deterioration. Evidence indicated that the changes of proteomic profile is highly associated with the atherosclerosis development, but the mechanism behind the exercise for atherosclerosis amelioration has not yet been investigated from the proteomics perspective. Hence, the proteomic profiles could further elucidate the systematic effects of exercise interven-tion on ApoE knockout atherosclerotic model and high fat diet intervention. In current study, Apoeem1Narl/Narl mice were randomly allocated into a normal diet (ND), western diet (WD) and WD with 12 weeks exercise intervention (WD EX) groups. The plasm proteome between WD and WD EX demonstrate the significant difference, and ten major pathways, including cardiovascular disease (CVD)–hematological disease, cellular compromise–inflammatory response, protein synthesis, connective tissue disorders, cellular movement–immune cell tracking, inflammatory response, etc., were generated by the IPA analysis. The fourteen proteins (PROS, PROZ, C2, F5, C5, SERPINA 10, FGB, FGG, CFB, F12, CRP, CFHR1, HABP2, and PPIA) critically involved in CVD–hematological disease pathway showed significant difference among groups. The PROS, F5, C5, FGG, and CFB levels associated with thrombosis and atherosclerosis induced by WD were significantly decreased by exercise intervention in WD EX. Furthermore, the F5 and FGG were well-demonstrated the important roles for thrombosis of atherosclerotic pathogenesis but the complement factor C5 in the development of atherosclerosis is not fully understood. In current study, the exercise could significantly alleviate the significantly elevated C5 and inflammation induced by WD group in accordance to amelioration of atherosclerosis. Therefore, exercise could mitigate chemotaxis through the modulation of the C5 level and innate immunity, thereby alle-viating the pathogenesis of atherosclerosis in western-diet induced obese mice.

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The TBK1/IKKe Inhibitor Amlexanox Improves Dyslipidemia and Prevents Atherosclerosis

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