PlacentaClone CellsTrophoblastsPregnancyChoriocarcinomaPlacental LactogenGlycoprotein Hormones, alpha SubunitChorionic GonadotropinChorionic VilliPregnancy ProteinsCell LineCells, CulturedPregnancy-Specific beta 1-GlycoproteinsMolecular Sequence DataRNA, Messenger8-Bromo Cyclic Adenosine MonophosphateBase SequenceEmbryo, NonmammalianCell DifferentiationPregnancy Trimester, FirstDNAMaternal-Fetal ExchangeEmbryo, MammalianProgesteroneAmino Acid SequenceBucladesineDeciduaBlotting, NorthernCloning, MolecularTranscription FactorsGene ExpressionTransfectionGestational AgeReverse Transcriptase Polymerase Chain ReactionGene Expression RegulationBlastocystGene Expression Regulation, DevelopmentalCell Transformation, ViralImmunohistochemistryPromoter Regions, GeneticCyclic AMPEmbryonic DevelopmentFetusAlkaline PhosphataseT-LymphocytesCell DivisionCell Line, TumorKineticsCell AggregationGastrulaVitellinsEmbryonic Stem CellsLymphocyte ActivationBlastomeresXenopus ProteinsDNA, ComplementaryCapsulorhexisCell LineageChick EmbryoCaenorhabditis elegansMitosisEpitopesReceptors, Antigen, T-CellT-Lymphocytes, Helper-InducerTeratomaPhenotypeXenopusXenopus laevisCarcinoma, EmbryonalMutationOvumPolymerase Chain ReactionTranscription, GeneticCD4-Positive T-LymphocytesTeratocarcinomaCell CycleChimeraTumor Cells, CulturedGenes, T-Cell Receptor betaBlastulaOocytesSequence Homology, Amino AcidEmbryonal Carcinoma Stem CellsEndodermCleavage Stage, OvumStem CellsNucleic Acid HybridizationBlotting, SouthernB-LymphocytesNuclear Transfer TechniquesEpitopes, T-LymphocyteAntibodies, MonoclonalCaenorhabditis elegans ProteinsDNA PrimersGenetic VectorsMice, Inbred C57BLCDC2 Protein KinaseMorphogenesisStarfishSignal Transduction