2024
In silico and in vitro models reveal the molecular mechanisms of hypocontractility caused by TPM1 M8R
Creso J, Gokhan I, Rynkiewicz M, Lehman W, Moore J, Campbell S. In silico and in vitro models reveal the molecular mechanisms of hypocontractility caused by TPM1 M8R. Frontiers In Physiology 2024, 15: 1452509. PMID: 39282088, PMCID: PMC11392859, DOI: 10.3389/fphys.2024.1452509.Peer-Reviewed Original ResearchDilated cardiomyopathyManifestation of dilated cardiomyopathyTropomyosin-actin interactionsIntact cardiac muscleIsometric twitch forceCardiac muscle disordersSevere heart failureHuman engineered heart tissueGenotype-phenotype relationshipsDose-dependent mannerDuration of contractionIn silico predictionIn vitro modelDepressed contractilityMutant tissueCardiac sarcomereLinkage studiesHeart failureTropomyosin chainTwitch contractionsCardiac thin filamentsInherited disorderMuscle disordersMutation pathogenicityCardiac muscle
2022
Humanized Dsp ACM Mouse Model Displays Stress-Induced Cardiac Electrical and Structural Phenotypes
Stevens TL, Manring HR, Wallace MJ, Argall A, Dew T, Papaioannou P, Antwi-Boasiako S, Xu X, Campbell SG, Akar FG, Borzok MA, Hund TJ, Mohler PJ, Koenig SN, El Refaey M. Humanized Dsp ACM Mouse Model Displays Stress-Induced Cardiac Electrical and Structural Phenotypes. Cells 2022, 11: 3049. PMID: 36231013, PMCID: PMC9562631, DOI: 10.3390/cells11193049.Peer-Reviewed Original ResearchConceptsArrhythmogenic cardiomyopathyMouse modelStructural phenotypesFibro-fatty infiltrationFirst mouse modelHeart failureChamber dilationVentricular arrhythmiasPressure overloadArrhythmic eventsCardiac performanceCardiac stressSudden deathCardiovascular stressInherited disorderG variantConnexin 43MiceDesmosomal genesReduced expressionExternal stressorsACM familyDisease developmentMurine equivalentIncomplete penetrance