2014
The vestigial enzyme D-dopachrome tautomerase protects the heart against ischemic injury
Qi D, Atsina K, Qu L, Hu X, Wu X, Xu B, Piecychna M, Leng L, Fingerle-Rowson G, Zhang J, Bucala R, Young LH. The vestigial enzyme D-dopachrome tautomerase protects the heart against ischemic injury. Journal Of Clinical Investigation 2014, 124: 3540-3550. PMID: 24983315, PMCID: PMC4109524, DOI: 10.1172/jci73061.Peer-Reviewed Original ResearchConceptsMacrophage migration inhibitory factorContractile dysfunctionAntibody-dependent neutralizationAutocrine/paracrine effectsCoronary artery ligationCardiac contractile dysfunctionMigration inhibitory factorLV contractile dysfunctionDopachrome tautomeraseMolecular signaling pathwaysArtery ligationIschemic injuryCardiac sizeCardiomyocyte secretionControl heartsProtective effectKnockout miceParacrine effectsIschemic stressPhysiologic responsesInhibitory factorMore necrosisDysfunctionInjuryMurine cardiomyocytes
2013
NO triggers RGS4 degradation to coordinate angiogenesis and cardiomyocyte growth
Jaba IM, Zhuang ZW, Li N, Jiang Y, Martin KA, Sinusas AJ, Papademetris X, Simons M, Sessa WC, Young LH, Tirziu D. NO triggers RGS4 degradation to coordinate angiogenesis and cardiomyocyte growth. Journal Of Clinical Investigation 2013, 123: 1718-1731. PMID: 23454748, PMCID: PMC3613910, DOI: 10.1172/jci65112.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, BiologicalAnimalsCell EnlargementCells, CulturedCoronary VesselsEndothelium, VascularHeart VentriclesMechanistic Target of Rapamycin Complex 1MiceMice, Inbred C57BLMice, TransgenicMultiprotein ComplexesMyocytes, CardiacNeovascularization, PhysiologicNG-Nitroarginine Methyl EsterNitric OxideNitric Oxide SynthasePlacenta Growth FactorPregnancy ProteinsProteinsProteolysisProto-Oncogene Proteins c-aktRatsRats, Sprague-DawleyRGS ProteinsSignal TransductionTOR Serine-Threonine KinasesConceptsCardiomyocyte growthAkt/mTORC1 signalingNovel NO-dependent mechanismProteasomal degradationCoordination of angiogenesisMTORC1 signalingConditional overexpressionMurine cardiac tissueG proteinsTransgenic expressionAkt/Physiological mechanismsMyocyte growthVessel growthGrowth factorTransgenic miceHypertrophic responseAngiogenesisKnockout miceMyocardial hypertrophyExpressionGrowthCardiac hypertrophyNOS inhibitor L-NAMEInduction