2024
Confinement induces internal flows in adherent cell aggregates
Yousafzai M, Amiri S, Sun Z, Pahlavan , Murrell M. Confinement induces internal flows in adherent cell aggregates. Journal Of The Royal Society Interface 2024, 21: 20240105. PMID: 38774959, PMCID: PMC11285874, DOI: 10.1098/rsif.2024.0105.Peer-Reviewed Original Research
2022
Dysregulation of TSP2-Rac1-WAVE2 axis in diabetic cells leads to cytoskeletal disorganization, increased cell stiffness, and dysfunction
Xing H, Huang Y, Kunkemoeller B, Dahl P, Muraleetharan O, Malvankar N, Murrell M, Kyriakides T. Dysregulation of TSP2-Rac1-WAVE2 axis in diabetic cells leads to cytoskeletal disorganization, increased cell stiffness, and dysfunction. Scientific Reports 2022, 12: 22474. PMID: 36577792, PMCID: PMC9797577, DOI: 10.1038/s41598-022-26337-1.Peer-Reviewed Original ResearchConceptsCell-derived matricesCell stiffnessFamily verprolin-homologous protein 2Active Rac1Thrombospondin-2Homologous protein 2Less traction forceCytoskeleton organizationExtracellular matrix productionMajor cell populationF-actinCytoskeletal disorganizationRegulatory roleProtein 2Matrix productionCritical functionsECM productionArt microscopy techniquesNew functionsCell populationsSpindle-like shapeRac1Normal fibroblastsFibroblastsWound spaceInterplay between substrate rigidity and tissue fluidity regulates cell monolayer spreading
Staddon M, Murrell M, Banerjee S. Interplay between substrate rigidity and tissue fluidity regulates cell monolayer spreading. Soft Matter 2022, 18: 7877-7886. PMID: 36205535, PMCID: PMC9700261, DOI: 10.1039/d2sm00757f.Peer-Reviewed Original ResearchConceptsSubstrate rigidityCollective cell motionSubstrate stiffnessTissue fluidityStiff substratesCell-matrix adhesionTraction force generationCell-cell interactionsCell motionTissue morphogenesisSoft elastic matrixCell collectivesEmbryonic developmentCell crawlingCell spreadingCell monolayersSolid tissuesCell behaviorMechanical behaviorPredictive understandingMechanical propertiesCancer invasionCell aggregatesElastic matrixCell propertiesA molecular clock controls periodically driven cell migration in confined spaces
Lee SH, Hou JC, Hamidzadeh A, Yousafzai MS, Ajeti V, Chang H, Odde DJ, Murrell M, Levchenko A. A molecular clock controls periodically driven cell migration in confined spaces. Cell Systems 2022, 13: 514-529.e10. PMID: 35679858, DOI: 10.1016/j.cels.2022.05.005.Peer-Reviewed Original ResearchConceptsCell migrationSmall GTPase RhoAFaster cell migrationNegative feedback loopExchange factorMolecular clockGEF-H1RhoA guanineGTPase RhoAMicrotubule dynamicsMolecular mechanismsClock controlCell spreadExtracellular matrixIntracellular CaTissue reorganizationFeedback loopMigrationRhoAAbundanceGuanineBetter understanding
2014
How cells flow in the spreading of cellular aggregates
Beaune G, Stirbat T, Khalifat N, Cochet-Escartin O, Garcia S, Gurchenkov V, Murrell M, Dufour S, Cuvelier D, Brochard-Wyart F. How cells flow in the spreading of cellular aggregates. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 8055-8060. PMID: 24835175, PMCID: PMC4050549, DOI: 10.1073/pnas.1323788111.Peer-Reviewed Original Research