Smooth Muscle Cell Reprogramming in Aortic Aneurysms
Chen PY, Qin L, Li G, Malagon-Lopez J, Wang Z, Bergaya S, Gujja S, Caulk AW, Murtada SI, Zhang X, Zhuang ZW, Rao DA, Wang G, Tobiasova Z, Jiang B, Montgomery RR, Sun L, Sun H, Fisher EA, Gulcher JR, Fernandez-Hernando C, Humphrey JD, Tellides G, Chittenden TW, Simons M. Smooth Muscle Cell Reprogramming in Aortic Aneurysms. Cell Stem Cell 2020, 26: 542-557.e11. PMID: 32243809, PMCID: PMC7182079, DOI: 10.1016/j.stem.2020.02.013.Peer-Reviewed Original ResearchConceptsSmooth muscle cellsAortic aneurysmAneurysm developmentMedial smooth muscle cellsAortic aneurysm developmentContractile smooth muscle cellsGrowth factor βHypercholesterolemic dietSmooth muscleAortic wallMesenchymal stem cellsMuscle cellsAneurysmsMarked increaseFactor βExuberant growthStem cellsHuman diseasesCell massCellsAtherosclerosisHypercholesterolemiaInflammationAortaApoEChronic mTOR activation induces a degradative smooth muscle cell phenotype
Li G, Wang M, Caulk AW, Cilfone NA, Gujja S, Qin L, Chen PY, Chen Z, Yousef S, Jiao Y, He C, Jiang B, Korneva A, Bersi MR, Wang G, Liu X, Mehta S, Geirsson A, Gulcher JR, Chittenden TW, Simons M, Humphrey JD, Tellides G. Chronic mTOR activation induces a degradative smooth muscle cell phenotype. Journal Of Clinical Investigation 2020, 130: 1233-1251. PMID: 32039915, PMCID: PMC7269581, DOI: 10.1172/jci131048.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortaAortic Aneurysm, ThoracicAortic DissectionBeta CateninDisease Models, AnimalLysosomesMechanistic Target of Rapamycin Complex 1MiceMice, Knockout, ApoEMicrophthalmia-Associated Transcription FactorMyocytes, Smooth MuscleSignal TransductionTOR Serine-Threonine KinasesTuberous Sclerosis Complex 1 ProteinConceptsMTOR activationMTOR complex 1Smooth muscle cell phenotypeMuscle cell phenotypeContext of hyperlipidemiaSmooth muscle cell proliferationThoracic aortic aneurysmDegradative organellesMuscle cell proliferationHematopoietic lineage markersSMC phenotypeLysosomal clearanceAdvanced diseaseMedial degenerationAortic diseaseLysosomal markersAortic aneurysmExtracellular matrixPhenotypic modulationConventional macrophagesMacrophage markersMedial SMCsConditional disruptionLineage markersImmune effectors