2025
Short-term disruption of TGFβ signaling in adult mice renders the aorta vulnerable to hypertension-induced dissection
Jiang B, Ren P, He C, Wang M, Murtada S, Ruiz-Rodríguez M, Chen Y, Ramachandra A, Li G, Qin L, Assi R, Schwartz M, Humphrey J, Tellides G. Short-term disruption of TGFβ signaling in adult mice renders the aorta vulnerable to hypertension-induced dissection. JCI Insight 2025, 10 PMID: 39932797, PMCID: PMC11949005, DOI: 10.1172/jci.insight.182629.Peer-Reviewed Original ResearchConceptsSmooth muscle cellsBlood pressureAortic dissectionAdult miceInherited connective tissue disorderConnective tissue disordersTGF-b signalingAccumulation of bloodHigh blood pressureAortic phenotypeTissue disordersMolecule expressionTGFB signalingMuscle cellsRisk factorsSynthesis of extracellular matrixSustained increaseTransient increaseBlood extravasationDissectionMedial injuryExtracellular matrix productionVascular degenerationExperimental modelMice
2022
Deletion of matrix metalloproteinase-12 compromises mechanical homeostasis and leads to an aged aortic phenotype in young mice
Spronck B, Ramachandra AB, Moriyama L, Toczek J, Han J, Sadeghi MM, Humphrey JD. Deletion of matrix metalloproteinase-12 compromises mechanical homeostasis and leads to an aged aortic phenotype in young mice. Journal Of Biomechanics 2022, 141: 111179. PMID: 35759974, PMCID: PMC9585962, DOI: 10.1016/j.jbiomech.2022.111179.Peer-Reviewed Original ResearchConceptsPulse wave velocityAortic phenotypeYoung miceAortic agingMMP-12Matrix metalloproteinasesMMP-12-deficient miceOld adult miceMatrix metalloproteinase-12Biomechanical propertiesAbdominal aortaArterial agingDeficient miceEnd organsBlood flowAdult miceCentral arteriesPercent changeMetalloproteinase-12MiceArterial wallAortaYoung adultsMatrix turnoverStrong proteolytic activity
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