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The Homeobox Gene S8: Mesoderm-Specific Expression in Presomite Embryos and in Cells Cultured in Vitro and Modulation in Differentiating Pluripotent Cells

机译:同源盒基因S8:早中胚胚和体外培养的细胞中胚层特异性表达以及分化多能细胞的调节

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TheemS8/emgeneofthemousecontainsaempaired/em-likehomeoboxandisexpressedduringorganogenesisinacomplexpatterninmesenchyme.HereweshowthatemS8/emisfirstexpressedinextraembryonicmesodermofprimitivestreakstageembryosandthatitisstronglyexpressedinmesodermofearly-headfoldeuralplatestageembryos.Itis,however,absentfromtheprimitivestreakanditsimmediatelyadjacentareas.Earlyafterinitialmesodermformation,thisexpressiondomaindefinesaspecificregionofthemesodermthat,tosomeextent,foreshadowsthelateremS8/emexpressionpattern.Thepatternatthisstageisroughlycomplementarytothatoftheembrachyury(T)/emgene.ExpressionincelllineswasstudiedbothatthelevelofRNAandprotein.MesodermspecificityofemS8/emexpressionwasconfirmedinterminallydifferentiatedcelllines.emS8/emisactivatedbyretinoicacidincertainembryonalcarcinomacells,embryonicstemcells,andneuralcrestcelllines,andalsoduringspontaneousdifferentiationinembryonicstemcells./p/div
机译: S8 geneofthemousecontainsa 成对的 -likehomeoboxandisexpressedduringorganogenesisinacomplexpatterninmesenchyme.Hereweshowthat S8 isfirstexpressedinextraembryonicmesodermofprimitivestreakstageembryosandthatitisstronglyexpressedinmesodermofearly-headfold / neuralplatestageembryos.Itis然而,absentfromtheprimitivestreakanditsimmediatelyadjacentareas.Earlyafterinitialmesodermformation,thisexpressiondomaindefinesaspecificregionofthemesodermthat,tosomeextent,foreshadowsthelater < em> S8 表达模式。此阶段的模式与 brachyury(T)基因大致互补。研究细胞系的表达水平认为RNA和蛋白质的表达水平。以及自然分化的胚胎干细胞。

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