2024
Downregulation of adipose LPL by PAR2 contributes to the development of hypertriglyceridemia
Huang Y, Chen L, Li L, Qi Y, Tong H, Wu H, Xu J, Leng L, Cheema S, Sun G, Xia Z, McGuire J, Rodrigues B, Young L, Bucala R, Qi D. Downregulation of adipose LPL by PAR2 contributes to the development of hypertriglyceridemia. JCI Insight 2024, 9: e173240. PMID: 38973609, PMCID: PMC11383372, DOI: 10.1172/jci.insight.173240.Peer-Reviewed Original ResearchConceptsMacrophage migration inhibitory factorDevelopment of hypertriglyceridemiaWhite adipose tissueAdipose LPLPAR2 expressionLevels of macrophage migration inhibitory factorElevated plasma TG levelsLPL expressionLipoprotein lipaseIncrease PAR2 expressionPlasma MIF levelsPlasma TG levelsMigration inhibitory factorPalmitic acid dietInhibited Akt phosphorylationMIF levelsLipoprotein lipase geneTG levelsObese humansPlasma TGHypertriglyceridemiaAkt phosphorylationLipid storageInhibitory factorAdipose tissue
2023
A pref-1-controlled non-inflammatory mechanism of insulin resistance
Huang Y, Cui D, Chen L, Tong H, Wu H, Muller G, Qi Y, Wang S, Xu J, Gao X, Fifield K, Wang L, Xia Z, Vanderluit J, Liu S, Leng L, Sun G, McGuire J, Young L, Bucala R, Qi D. A pref-1-controlled non-inflammatory mechanism of insulin resistance. IScience 2023, 26: 106923. PMID: 37283810, PMCID: PMC10239698, DOI: 10.1016/j.isci.2023.106923.Peer-Reviewed Original ResearchInsulin resistanceMIF secretionPref-1 expressionPref-1Fat-induced insulin resistancePlasma MIF levelsNon-inflammatory mechanismsActivation of PAR2Palmitic acid dietHigh fat-induced insulin resistanceWhite adipose tissueSubsequent insulin resistanceMIF levelsPAR2 expressionM2 macrophagesAcid dietAdipose tissueAMPK-dependent mannerEndothelial cellsSecretionIntegrin β1CellsExpressionHigh levelsInflammation