2024
Potential role of RhoA GTPase regulation in type interferon signaling in systemic lupus erythematosus
Fan W, Wei B, Chen X, Zhang Y, Xiao P, Li K, Zhang Y, Huang J, Leng L, Bucala R. Potential role of RhoA GTPase regulation in type interferon signaling in systemic lupus erythematosus. Arthritis Research & Therapy 2024, 26: 31. PMID: 38243295, PMCID: PMC10799493, DOI: 10.1186/s13075-024-03263-3.Peer-Reviewed Original ResearchConceptsPeripheral blood mononuclear cellsRhoA GTPaseExpression levelsTreatment of SLEFunctions of RhoA.Knockdown of RhoAI IFN-stimulated genesSiRNA-mediated knockdownI interferonEnzyme-linked immunoassayIFN-stimulated genesGTPase signalingExpression levels of RhoASLE patientsLevels of RhoALupus erythematosusSLE peripheral blood mononuclear cellsGTPase regulatorHealthy controlsExpression of RhoAResponse pathwaysReporter gene assayRhoAType I IFN signalingSignal transducer
2022
Oncogenic BRAF induces whole-genome doubling through suppression of cytokinesis
Darp R, Vittoria M, Ganem N, Ceol C. Oncogenic BRAF induces whole-genome doubling through suppression of cytokinesis. Nature Communications 2022, 13: 4109. PMID: 35840569, PMCID: PMC9287415, DOI: 10.1038/s41467-022-31899-9.Peer-Reviewed Original ResearchConceptsWhole-genome doubling eventsWhole-genome doublingSuppression of cytokinesisOncogenic BRAFZebrafish melanoma modelLocalization of RhoAG1/S phaseG1/SMAPK pathway activityCytokinesis regulatorsInhibition of RhoACytokinesis failureGenomic configurationNascent tumor cellsCentriole amplificationDiploid cellsCell cycleCytokinesisSuch karyotypesS phaseTetraploid cellsNear-tetraploid karyotypePathway activityChromosomal gainsRhoAA 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
2020
Decline of RhoA/Rho-kinase 1 expression and myosin light chain phosphorylation facilitate the formation of aortic dissection
Zhang W, Liu F, Shu X, Wang E, Wang L, Fu W. Decline of RhoA/Rho-kinase 1 expression and myosin light chain phosphorylation facilitate the formation of aortic dissection. Chinese Journal Of Experimental Surgery 2020, 37: 828-831. DOI: 10.3760/cma.j.cn421213-20191209-00869.Peer-Reviewed Original ResearchSmooth muscle cellsMyosin light chainPhosphorylation of myosin light chainMyosin light chain phosphorylationAortic dissectionFormation of aortic dissectionExpression of RhoAFormation of ADPhosphorylated myosin light chainPrimary smooth muscle cellsLight chain phosphorylationMLC phosphorylationRhoA/Rho-kinaseMuscle cellsFasudilAD groupInhibitors of ROCK1Light chainPhosphorylationQuantitative variationDissectionRhoAROCK1ImmunofluorescenceBAPN
2018
Activation of RhoA, Smad2, c‐Src, PKC‐βII/δ and JNK in atopic dermatitis
Lu J, Yin R, Fu Z, Lee V, Nelson J, Tan W. Activation of RhoA, Smad2, c‐Src, PKC‐βII/δ and JNK in atopic dermatitis. Australasian Journal Of Dermatology 2018, 59: e258-e261. PMID: 29498756, PMCID: PMC6978706, DOI: 10.1111/ajd.12801.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedDermatitis, AtopicDermisEpidermisFemaleHumansJNK Mitogen-Activated Protein KinasesMaleMiddle AgedPhosphorylationProtein Kinase C betaReceptor, Transforming Growth Factor-beta Type IrhoA GTP-Binding ProteinSeverity of Illness IndexSmad2 Proteinsrc-Family KinasesUp-RegulationYoung AdultConceptsExpression of TGFβR1Atopic dermatitisAtopic dermatitis severityInfiltrated inflammatory cellsMultifactorial skin diseaseActivation of Smad2C-SrcDermatitis severityInflammatory progressionInflammatory cellsSkin diseasesActivation of RhoAPhosphorylation levelsDermatitisTGFβR1JNKSmad2ActivationInflammationChronicPathogenesisExpressionRhoADiseaseProgression
2016
Bistability in the Rac1, PAK, and RhoA Signaling Network Drives Actin Cytoskeleton Dynamics and Cell Motility Switches
Byrne KM, Monsefi N, Dawson JC, Degasperi A, Bukowski-Wills JC, Volinsky N, Dobrzyński M, Birtwistle MR, Tsyganov MA, Kiyatkin A, Kida K, Finch AJ, Carragher NO, Kolch W, Nguyen LK, von Kriegsheim A, Kholodenko BN. Bistability in the Rac1, PAK, and RhoA Signaling Network Drives Actin Cytoskeleton Dynamics and Cell Motility Switches. Cell Systems 2016, 2: 38-48. PMID: 27136688, PMCID: PMC4802415, DOI: 10.1016/j.cels.2016.01.003.Peer-Reviewed Original ResearchConceptsPAK inhibitionMesenchymal breast cancer cellsCell migrationActin cytoskeleton dynamicsRho small GTPase familyRac1 activation levelsSmall GTPase familySwitch-like responsePAK family kinasesSmall chemical inhibitorsCytoskeleton dynamicsActin dynamicsGTPase familyFamily kinasesGTPase activityBistable fashionInhibitory crosstalkChemical inhibitorsBreast cancer cellsMass spectrometry-based quantitationRac1RhoACell morphologyCancer cellsPAK
2013
Control of the G- protein cascade dynamics by GDP dissociation inhibitors
Nikonova E, Tsyganov MA, Kolch W, Fey D, Kholodenko BN. Control of the G- protein cascade dynamics by GDP dissociation inhibitors. Molecular Omics 2013, 9: 2454-2462. PMID: 23872884, DOI: 10.1039/c3mb70152b.Peer-Reviewed Original ResearchConceptsGDP dissociation inhibitorGuanine nucleotide exchange factorsRho family GTPasesDissociation inhibitorNucleotide exchange factorsKey cellular processesProtrusion-retraction cyclesSignal-induced changesCell migration behaviorActive GTPExchange factorInactive GDPCellular processesGTPase activityRac1 activityGTPasesBistable switchRhoADistinct modesRhoGDI1GTPaseInhibitorsRac1GTPCytoplasm
2012
The role of small GTPases in neuronal morphogenesis and polarity
Gonzalez‐Billault C, Muñoz‐Llancao P, Henriquez D, Wojnacki J, Conde C, Caceres A. The role of small GTPases in neuronal morphogenesis and polarity. Cytoskeleton 2012, 69: 464-485. PMID: 22605667, DOI: 10.1002/cm.21034.Peer-Reviewed Original ResearchConceptsNeuronal morphogenesisRegulation of cytoskeletal dynamicsParticipation of RhoASmall GTPasesActin cytoskeletonCytoskeletal dynamicsNeuronal polarityDynamic remodelingMorphogenetic eventsGTPaseCross-talkMorphogenesisAxonal elongationFamily membersSynaptic plasticityCdc42CytoskeletonRhoATC10ActinMicrotubulesRacRegulation
2005
P-Rex1 Is a Primary Rac2 Guanine Nucleotide Exchange Factor in Mouse Neutrophils
Dong X, Mo Z, Bokoch G, Guo C, Li Z, Wu D. P-Rex1 Is a Primary Rac2 Guanine Nucleotide Exchange Factor in Mouse Neutrophils. Current Biology 2005, 15: 1874-1879. PMID: 16243036, DOI: 10.1016/j.cub.2005.09.014.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnimalsCaseinsCell LineChemotaxisCloning, MolecularEnzyme ActivationGene TargetingGuanine Nucleotide Exchange FactorsHumansImmunoprecipitationMiceMice, KnockoutN-Formylmethionine Leucyl-PhenylalanineNeuropeptidesNeutrophilsProtein Transportrac GTP-Binding Proteinsrac1 GTP-Binding ProteinSuperoxidesConceptsP-Rex1Exchange factorGuanine nucleotide exchange factorsNucleotide exchange factorsRegulation of RacF-actin formationMouse neutrophilsSmall GTPasesRho familyRac activityApparent high affinityRac activatorActin formationRac1 activationRac2 activationCdc42Mouse linesRacRac2RhoAMigration rateRegulationHigh affinityLeukocyte chemoattractantsGTPasesRegulation of PTEN by Rho small GTPases
Li Z, Dong X, Wang Z, Liu W, Deng N, Ding Y, Tang L, Hla T, Zeng R, Li L, Wu D. Regulation of PTEN by Rho small GTPases. Nature Cell Biology 2005, 7: 399-404. PMID: 15793569, DOI: 10.1038/ncb1236.Peer-Reviewed Original ResearchMeSH KeywordsAnimalscdc42 GTP-Binding ProteinChemotaxisDictyosteliumHumansIntracellular Signaling Peptides and ProteinsLeukocytesMiceModels, BiologicalNeutrophilsPhosphoric Monoester HydrolasesProtein Serine-Threonine KinasesProtein TransportPTEN Phosphohydrolaserho-Associated KinasesrhoA GTP-Binding ProteinTumor Suppressor ProteinsConceptsRegulation of PTENIntracellular localizationEmbryonic kidney cellsSmall GTPaseDownstream effectorsPhospholipid phosphatase activityRho small GTPasesRegulation of chemotaxisKidney cellsHuman embryonic kidney cellsSmall GTPasesRho familyPhosphoinositide substratesKey residuesActive RhoAPhosphatase activityPTENRhoAGTPaseRegulationHuman tumorsCellsDiverse rangeGTPasesCdc42Ubiquitination of RhoA by Smurf1 promotes neurite outgrowth
Bryan B, Cai Y, Wrighton K, Wu G, Feng X, Liu M. Ubiquitination of RhoA by Smurf1 promotes neurite outgrowth. FEBS Letters 2005, 579: 1015-1019. PMID: 15710384, DOI: 10.1016/j.febslet.2004.12.074.Peer-Reviewed Original ResearchConceptsRhoA protein levelsNeurite outgrowthE3 ubiquitin ligaseProteasome inhibitor MG132Protein levelsNon-neuronal cell typesIntracellular asymmetryCell polarityRho familyRho GTPasesUbiquitin ligasePromotes Neurite OutgrowthSubsequent ubiquitinationProteasomal degradationProtrusive activityEssential regulatorInhibitor MG132RhoA activitySmurf1Axonal pathfindingUbiquitinationNeuro2a cellsRhoACell typesProtrusion sites
2002
Pseudomonas aeruginosa ExoT Acts In Vivo as a GTPase-Activating Protein for RhoA, Rac1, and Cdc42
Kazmierczak B, Engel J. Pseudomonas aeruginosa ExoT Acts In Vivo as a GTPase-Activating Protein for RhoA, Rac1, and Cdc42. Infection And Immunity 2002, 70: 2198-2205. PMID: 11895987, PMCID: PMC127837, DOI: 10.1128/iai.70.4.2198-2205.2002.Peer-Reviewed Original Research
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