Human trophectoderm becomes multi-layered by internalization at the polar region
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE244721 | GEO | 2024/05/14
REPOSITORIES: GEO
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Project description:5 days after fertilisation the human embryo forms a blastocyst, comprising an outer layer of trophectoderm (TE), that gives rise to placental trophoblast cells, and the inner cell mass (ICM) which later segregates into epiblast (EPI) and primitive endoderm (PE). After implantation TE differentiates into cytotrophoblast cells (CTBs) which give rise to the multinucleated syncytiotrophoblast (STB) and invasive extravillous trophoblast cells (EVTs). A conserved molecular cascade regulates TE initiation (Gerri et al. Nature 2020), but subsequent TE development is poorly defined. To study this in greater detail we performed RNA-seq analysis of human blastocysts cultured to different stages of pre-implantation TE development: Day 5: TE appearance, Day 6: TE expansion and Day 7: TE hatching.
2024-08-31 | E-MTAB-10749 | biostudies-arrayexpress
Project description:The trophoblast cell lineage is specified as early as the blastocyst stage, leading to the individualization of trophectoderm from pluripotent cells of the inner cell mass. We used a double in vitro transcription mRNA amplification technique and compared trophectoderm with pluripotent stem cells.
2011-07-15 | GSE28504 | GEO
Project description:Embryo implantation into maternal endometrium is critical for initiation and establishment of pregnancy, requiring developmental synchrony between endometrium and blastocyst. However, factors regulating human endometrial-embryo cross talk and facilitate implantation remain largely unknown. Extracellular vesicles (EVs) are emerging as important mediators of this process. Here, human trophectomderm stem cell-derived EVs were shown to transfer to and regulate human endometrial cells towards processes associated with implantation. Importantly, transfer of trophectoderm EV cargo proteins to endometrial cells to mediate changes in polarity is demonstrated.
2021-03-18 | PXD022501 | Pride
Project description:The trophoblast cell lineage is specified as early as the blastocyst stage, leading to the individualization of trophectoderm from pluripotent cells of the inner cell mass. We used a double in vitro transcription mRNA amplification technique and compared trophectoderm with pluripotent stem cells. These five trophectoderm samples were compared to 176 human embryonic stem cell samples and adult samples that are publicly available in GEO under the following accession numbers: GSM136511 GSM136512 GSM136513 GSM136519 GSM136525 GSM136526 GSM172579 GSM175789 GSM175792 GSM175795 GSM175810 GSM175811 GSM175812 GSM175814 GSM175815 GSM175817 GSM175818 GSM175820 GSM175821 GSM175825 GSM175826 GSM175827 GSM175842 GSM175843 GSM175849 GSM175850 GSM175852 GSM175853 GSM175859 GSM175860 GSM175861 GSM175862 GSM175863 GSM175864 GSM175866 GSM175867 GSM175869 GSM175870 GSM175871 GSM175872 GSM175874 GSM175875 GSM175876 GSM175879 GSM175880 GSM175885 GSM175886 GSM175901 GSM175902 GSM175906 GSM175907 GSM175908 GSM175911 GSM175935 GSM175937 GSM175941 GSM175942 GSM175943 GSM175948 GSM175949 GSM175950 GSM175951 GSM175967 GSM175974 GSM175975 GSM175977 GSM175978 GSM175979 GSM175982 GSM175984 GSM175985 GSM175987 GSM175988 GSM175993 GSM175999 GSM176000 GSM176002 GSM176003 GSM176004 GSM176006 GSM176007 GSM176009 GSM176010 GSM176012 GSM176017 GSM176026 GSM176028 GSM176058 GSM176113 GSM176115 GSM176119 GSM176123 GSM176131 GSM176136 GSM176243 GSM176245 GSM176265 GSM176268 GSM176269 GSM176276 GSM176281 GSM176282 GSM176283 GSM176284 GSM176285 GSM176286 GSM176300 GSM176301 GSM176310 GSM176318 GSM176320 GSM176321 GSM176322 GSM176323 GSM176325 GSM176326 GSM176328 GSM176328 GSM176329 GSM176330 GSM176331 GSM176332 GSM176333 GSM176334 GSM176336 GSM176337 GSM176338 GSM176344 GSM176345 GSM176346 GSM176352 GSM176353 GSM176363 GSM176365 GSM176381 GSM176382 GSM176385 GSM176386 GSM176387 GSM176389 GSM176390 GSM176391 GSM176407 GSM176408 GSM176411 GSM176412 GSM176413 GSM176430 GSM176431 GSM176432 GSM176433 GSM176435 GSM183605 GSM183606 GSM183607 GSM183608 GSM183609 GSM194307 GSM194308 GSM245341 GSM248200 GSM248201 GSM248202 GSM248204 GSM249025 GSM249027 GSM257524 GSM288812 GSM288876 GSM288877 GSM388581 GSM388636 GSM388638 GSM452261 GSM452691 GSM453652
2011-07-14 | E-GEOD-28504 | biostudies-arrayexpress
Project description:Rat Extraembryonic Endoderm Precursor (XEN-P) cells resemble the nascent hypoblast of the blastocyst. Here we show that rat Multipotent Adult Progenitor Cell (rMAPC) lines derived from bone marrow (BM) exhibit salient nascent hypoblast characteristics. We could not identify cells with hypoblast features in rat BM, but they appeared after prolonged in vitro culture under rMAPC conditions. However, rMAPC culture conditions supported the very rapid isolation of new lines with nascent hypoblast features from rat blastocysts that were more homogenous than XEN-P cells isolated on feeders. The gene expression profile, growth factor requirement, Oct4 promoter methylation, and in vitro/vivo differentiation potential of cells isolated using rMAPC culture conditions from BM or blastocysts or XEN-P cells were highly similar. We conclude that the three cell populations have characteristics of hypoblast stem cells (HypoSC) and that rMAPC culture conditions support the isolation of XEN-P/HypoSC from the blastocyst and induction of HypoSC from BM. Comparison between bone marrow and blastocyst-derived Hypoblast Stem Cells (hypoSC) Three cell lines derived from bone marrow, three cell lines derived from blastocyst and one mesenchymal used, as control (for all of them 2 replicates)
2012-07-16 | E-GEOD-29114 | biostudies-arrayexpress
Project description:The implantation process begins with attachment of the trophectoderm (TE) of the blastocyst to the maternal endometrial epithelium. Herein we have investigated the transcriptome of mural TE cells from 13 human blastocysts and compared these with those of human embryonic stem cell (hESC)-derived-TE (hESCtroph). The transcriptomes of hESFtroph at days 8, 10, and 12 had the greatest consistency with TE. Among genes coding for secreted proteins of the TE of human blastocysts and of hESCtroph are several molecules known to be involved in the implantation process as well as novel ones, such as CXCL12, HBEGF, inhibin A, DKK3, Wnt 5A, follistatin. The similarities between the two lineages underscore some of the known mechanisms and offer discovery of new mechanisms and players in the process of the very early stages of human implantation. We propose that the hESCtroph is a viable functional model of human trophoblasts to study trophoblast-endometrial interactions. Furthermore, the data derived herein offer the promise of novel diagnostics and therapeutics aimed at practical challenges in human infertility and pregnancy disorders associated with abnormal embryonic implantation. Transcriptome analyses suggest human embryonic stem cell-derived-trophoblast as a viable functional model of human trophoblast to study trophoblast-endometrial interactions. Five pools of trophectoderm cells were subjected to RNA isolation and microarray. The resulting data were compared to the transcriptomes of H7 human embryonic stem cells differentiated to the trophoblast lineage after 0, 2, 4, 6, 8, 10 and 12 days of induction with BMP-4. This submission represents the trophectoderm cells from blastocysts.
2011-09-08 | E-GEOD-30650 | biostudies-arrayexpress
Project description:The first lineage differentiation in mammals gives rise to the inner cell mass (ICM) and the trophectoderm (TE). In mice, TEAD4 is a master regulator of TE commitment, as it regulates the expression of other TE-specific genes and its ablation prevents blastocyst formation, but its role in other mammals remains unclear. TEAD4 ablation in bovine embryos did not impede TE differentiation or blastocyst formation, but a transcriptomic analysis was performed to see if there were any transcriptomic anomalies in knockout embryos.
2024-05-05 | GSE266304 | GEO
Project description:We established culture conditions that enable the two fates of blastocysts’ extraembryonic lineages – the primitive endoderm and the trophectoderm – to co-exist in a shared XTE state. The XTE cells exhibit robust self-organization capacity and in combination with ES cells enable the assembly of blastocyst-like embryoids.
2022-09-13 | GSE159883 | GEO
Project description:In humans, the embryonic genome activation (EGA) program is functional by day 3 after fertilization. The 6-8 cell stage embryo (day 3 post-fertilization) starts the process of “compaction” that leads to the generation of the tightly organized cell mass of the morula and is followed by differentiation of the morula into a blastocyst. The transition from day 3 embryos to day 5 blastocysts is likely to be controlled by many and specific changes in the expression of different genes. We used mRNA amplification technique and compared the transcriptomes of day 3 human embryos and trophectoderm (TE) cells from day 5 human blastocysts to identify transcripts that are differentially expressed during the embryo-to-TE transition and involved in the TE specification. These six embryo samples were compared to our five human trophectoderm samples that are available in GEO under the following accession numbers: GSM706168 GSM706169 GSM706170 GSM706171 GSM706172
2012-07-08 | E-GEOD-33025 | biostudies-arrayexpress
Project description:The first lineage choice made in human embryo development separates trophectoderm from the inner cell mass, which proceeds to form the pluripotent epiblast and primitive endoderm. Trophectoderm on the other hand gives rise to the placenta. Naïve pluripotent stem cells are derived from the pluripotent epiblast of the blastocyst and offer possibilities to explore how lineage integrity is maintained. Here, we discover that Polycomb repressive complex 2 (PRC2) restricts an intrinsic capacity of naïve pluripotent stem cells to give rise to trophectoderm. Through quantitative epigenome profiling, we find that broad histone H3 lysine 27 trimethylation (H3K27me3) hypermethylation is a common feature of naïve pluripotency across species. We define a previously unappreciated, naïve-specific set of bivalent promoters, featuring PRC2-mediated H3K27me3 concomitant with H3K4me3. Naïve bivalency maintains key trophectoderm transcription factors in a transcriptionally poised state that is resolved to an active state upon depletion of H3K27me3 via inhibition of the enzymatic subunits of PRC2, EZH1/2. Conversely, primed human embryonic stem cells cannot be driven towards trophectoderm development via PRC2 inhibition. While naïve and primed hESCs share the majority of bivalent promoters, PRC2 contributes to the repression of largely non-overlapping subsets of these promoters in each state, hence H3K27me3-mediated repression provides a highly adaptive mechanism to restrict lineage potential during early human development.
2021-08-23 | GSE181241 | GEO