2021
Human embryo polarization requires PLC signaling to mediate trophectoderm specification
Zhu M, Shahbazi M, Martin A, Zhang C, Sozen B, Borsos M, Mandelbaum RS, Paulson RJ, Mole MA, Esbert M, Titus S, Scott RT, Campbell A, Fishel S, Gradinaru V, Zhao H, Wu K, Chen ZJ, Seli E, de los Santos MJ, Goetz M. Human embryo polarization requires PLC signaling to mediate trophectoderm specification. ELife 2021, 10: e65068. PMID: 34569938, PMCID: PMC8514238, DOI: 10.7554/elife.65068.Peer-Reviewed Original ResearchMeSH KeywordsActinsAdultBody PatterningCell DifferentiationCell LineageCell PolarityEmbryo Culture TechniquesEmbryo, MammalianFemaleGATA3 Transcription FactorGene Expression Regulation, DevelopmentalGene Expression Regulation, EnzymologicHumansPhosphoinositide Phospholipase CPhospholipase C betaPregnancySignal TransductionTime FactorsYoung AdultConceptsApical domain formationInner cell massEmbryo polarizationPhospholipase CFirst lineage segregationApico-basal polarizationEight-cell stageLineage segregationMammalian developmentTrophectoderm specificationTE fateApical enrichmentApical accumulationDistinct lineagesApical domainApolar cellsPar complexPolarized cellsRNA interferenceMolecular mechanismsF-actinHuman embryosCell stageEmbryosDomain formation
2020
BMP signalling is required for extra-embryonic ectoderm development during pre-to-post-implantation transition of the mouse embryo
Sozen B, Demir N, Zernicka-Goetz M. BMP signalling is required for extra-embryonic ectoderm development during pre-to-post-implantation transition of the mouse embryo. Developmental Biology 2020, 470: 84-94. PMID: 33217407, PMCID: PMC8219371, DOI: 10.1016/j.ydbio.2020.11.005.Peer-Reviewed Original ResearchConceptsBMP signalingEctoderm developmentNon-canonical mechanismMouse embryosMechanism of BMPMutant embryosGenetic studiesEarly embryogenesisSignaling pathwayPost-implantation developmentBMP activityTissue organisationStem cell populationStage in vitroSpatiotemporal controlUterine tissueEmbryosCell populationsBMPStem cellsSignalImplantationPost-implantationMiceMorphogenesis
2014
Unfolded protein response prevents blastocyst formation during preimplantation embryo development in vitro
Basar M, Bozkurt I, Guzeloglu-Kayisli O, Sozen B, Tekmen I, Schatz F, Arici A, Lockwood CJ, Kayisli UA. Unfolded protein response prevents blastocyst formation during preimplantation embryo development in vitro. Fertility And Sterility 2014, 102: 1777-1784. PMID: 25305729, DOI: 10.1016/j.fertnstert.2014.09.004.Peer-Reviewed Original ResearchConceptsUnfolded protein responseProtein responseBlastocyst formationEmbryo developmentActivation of UPRPreimplantation embryo developmentTM treatmentBlastocyst developmentEffect of tunicamycinEndoplasmic reticulum stressEmbryonic developmentER stressCell embryosNuclear fragmentationMorphological differencesImmunoglobulin proteinBlastocyst stageReticulum stressTunicamycinDevelopment ratePregnant mare serum gonadotropinBlastocyst development rateProtein-1 mRNA expressionNongenomic mechanismsEmbryosSuperovulation alters embryonic poly(A)-binding protein (Epab) and poly(A)-binding protein, cytoplasmic 1 (Pabpc1) gene expression in mouse oocytes and early embryos
Ozturk S, Yaba-Ucar A, Sozen B, Mutlu D, Demir N. Superovulation alters embryonic poly(A)-binding protein (Epab) and poly(A)-binding protein, cytoplasmic 1 (Pabpc1) gene expression in mouse oocytes and early embryos. Reproduction Fertility And Development 2014, 28: 375-383. PMID: 25034140, DOI: 10.1071/rd14106.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlastocystCells, CulturedChorionic GonadotropinDose-Response Relationship, DrugEmbryo Culture TechniquesFemaleFertility Agents, FemaleGene Expression Regulation, DevelopmentalGonadotropins, EquineMice, Inbred BALB COocytesOvulation InductionPoly(A)-Binding Protein IPoly(A)-Binding ProteinsSuperovulationTime FactorsConceptsEmbryonic poly(A)-binding proteinPregnant mare serum gonadotropinHuman chorionic gonadotrophinEarly embryo developmentAssisted reproductive technologyMII oocytesFemale miceAdministered to female miceGerminal vesicleOocyte maturationEmbryo developmentIncreased postimplantation lossDose of gonadotropinsCycling female miceDecreased implantation rateQuality of oocytesImpaired oocyte maturationGene expressionExperimental animal studiesEffects of superovulationReverse transcription-polymerase chain reactionPoly(A)-binding proteinPotential risk factorsTranscription-polymerase chain reactionImplantation rate