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Identification of endoderm-specific genes in mouse embryos

ABSTRACT: The foregut definitive endoderm is the precursor of many tissues including the liver, pancreas, thyroid, lungs, trachea and oesophagus. However, networks and pathways involved in the early development of the definitive endoderm of mammals are not well studied. To identify genes with potential roles in the early development of the foregut definitive endoderm in mouse embryos, we performed microarray analysis to compare the gene expression profile of foregut endoderm and non-endodermal tissues from early somite-stage mouse embryos.

ORGANISM(S): Mus musculus

PROVIDER: GSE36453 | GEO | 2012/03/13

SECONDARY ACCESSION(S): PRJNA153547

REPOSITORIES: GEO

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Identification of endoderm-specific genes in mouse embryos

Project description:The foregut definitive endoderm is the precursor of many tissues including the liver, pancreas, thyroid, lungs, trachea and oesophagus. However, networks and pathways involved in the early development of the definitive endoderm of mammals are not well studied. To identify genes with potential roles in the early development of the foregut definitive endoderm in mouse embryos, we performed microarray analysis to compare the gene expression profile of foregut endoderm and non-endodermal tissues from early somite-stage mouse embryos. ARC/s embryos at 4- to 5-somite stages were collected and the anterior intestinal portal was isolated by digestion with trypsin and pancreatin and mechanical dissection. Ectoderm and mesoderm tissues were dissected from the head folds and the heart, and combined as the non-endoderm tissues for comparison of gene expression profiles. RNA was extracted from 15-20 pooled samples of endoderm or ectoderm plus mesoderm cells and subjected to two rounds of linear amplification and labelling according to standard methods (Affymetrix). The amplified products were hybridized to Affymetrix mouse MOE430 GeneChips. The experiment was performed twice. RNA amplification labelling, hybridization and scanning were performed by the Australian Genome Research Facility. GC-RMA data normalization and further analysis were performed using GenePattern software.

2012-03-13 | E-GEOD-36453 | biostudies-arrayexpress

Mouse embryonic and induced pluripotent stem cells can form definitive endoderm despite differences in imprinted genes

Project description:The directed differentiation of induced pluripotent stem (iPS) and embryonic stem (ES) cells into definitive endoderm (DE) would allow the derivation of otherwise inaccessible progenitors for endodermal tissues. However, a global comparison of the relative equivalency of DE derived from iPS and ES populations has not been performed. Recent reports of molecular differences between iPS and ES cells have raised uncertainty as to whether iPS cells could generate autologous endodermal lineages in vitro. Here, we have shown that both mouse iPS and parental ES cells exhibited highly similar in vitro capacity to undergo directed differentiation into DE progenitors. With few exceptions, both cell types displayed similar surges in gene expression of specific master transcriptional regulators and global transcriptomes that define the developmental milestones of DE differentiation. Microarray analysis showed considerable overlap between the genetic programs of DE derived from ES/iPS cells in vitro and authentic DE from mouse embryos in vivo. Intriguingly, iPS cells exhibited aberrant silencing of imprinted genes known to participate in endoderm differentiation, yet retained a robust ability to differentiate into DE. Our results show that, despite some molecular differences, iPS cells can be efficiently differentiated into DE precursors, reinforcing their potential for development of cell-based therapies for diseased endodermal-derived tissues. Comparison of mouse ES cells, mouse iPS cells, and E8.25 Mouse embryos; in the undifferentiated state and definitive endoderm differentiated state. ckit+/Sox2dim =definitive endoderm (day 5 of differentiation in vitro); Sox2bright =undifferentiated ES or iPS cells (day 0 of differentiation); ENDM1+/Epcam+/SSlo=foregut endoderm sorted from mouse E8.25 embryos; Epcam+/ENDM1 negative =sorted comparison population from mouse E8.25 embryos.

2011-03-31 | E-GEOD-27087 | biostudies-arrayexpress

Genes induced in Xenopus foregut endoderm by mesoderm

Project description:Foregut organogenesis is regulated by inductive interactions between the endoderm and the adjacent mesoderm. We identified genes induced in the foregut progenitors by the adjacent mesoderm. We used microarrays to detail the global programme of early foregut endoderm gene expression resulting from mesoderm induction and identified distinct classes of up-regulated genes during this process. Xenopus foregut endoderm explants cultured from Stages 15 to 23 either intact with mesoderm or as endoderm alone. Total RNA was isolated from the endoderm of these two culture conditions in quadruplicate and were subjected to Affymetrix microarray analysis.

2012-06-11 | E-GEOD-38654 | biostudies-arrayexpress

Dynamic developmental signaling logic underlying lineage bifurcations during human endoderm induction and patterning from pluripotent stem cells [Expression data set]

Project description:The definitive endoderm germ layer is the provenance of multiple internal organs, including the lungs, liver, pancreas and intestines. Molecular events driving initial endoderm germ layer specification and subsequent anterior-posterior patterning of endoderm into distinct organ primordia remain largely cryptic. Through microarray analyses, we captured genome-wide transcriptional dynamics driving successive stages of endoderm development with the intent of identifying novel regulatory genes or diagnostic markers that respectively drive or mark endoderm committment. HES3 human embryonic stem cells (hESCs) were differentiated into highly homogeneous endodermal progenitor populations, and microarray analyses were conducted of six different populations at different tiers of the endodermal lineage hierarchy: undifferentiated hESCs, anterior primitive streak (day 1 of in vitro differentiation), definitive endoderm (day 3) and anterior foregut, posterior foregut or midgut/hindgut patterned endoderm populations (day 7). Additionally, we compared hESCs differentiated using two alternative endoderm induction protocols, serum-based or AFBLy-based differentiation (both day 3 of differentiation).

2013-11-07 | E-GEOD-52158 | biostudies-arrayexpress

Genes induced in Xenopus foregut endoderm by mesoderm

2012-06-12 | GSE38654 | GEO

Epithelial cell plasticity drives endoderm formation during gastrulation

Project description:We performed 3 single-cell RNAseq experiments to identify the mechanisms of definitive endoderm formation during gastrulation. To enrich for the rare endoderm and endoderm progenitor populations we used the FVF reporter mouse line. 103 homozygous FVF embryos were isloated at two consecutive days: 40 early to mid streak stage embryos at day 1, 39 early to mid streak embryos at day 2 , 24 mid streak to late streak embryos at day 2 . Embryonic compartments from each sample were FACS sorted according to Foxa2-Venus fluorescence intensity into FVF negative, FVF low and FVF high cell populations. Using the FVF-sorted cell populations we could identify FVF low endoderm progenitors and their continous transition into FVF high anterior defintive endoderm.

2021-06-24 | GSE162534 | GEO

Transcriptome profiling of hESC-derived endoderm progenitors by single-cell RNA-seq

Project description:In this study, we characterised transcriptomes of hESC-derived transient anterior definitive endoderm (ADE) and expanding ventral foregut (VFG) culture by single-cell sequencing. We also examined the effect of BMP4 withdrawal and FGF2 stimulation in the VFG culture.

2022-11-15 | GSE188362 | GEO

mRNA expression data from differentiation of human ESCs into definitive endoderm, Cyt49 on matrigel

Project description:hESCs can differentiate into the three primary embryonic lineages (endoderm, mesoderm, ectoderm) as well as extraembryonic tissues. Definitive endoderm (DE) is the first step into the pathway to endoderm derived tissues: pancreas, liver, gut, lung. We used microarrays to detail the changes in mRNA expression during the transition from pluripotent hESCs into definitive endoderm.

2010-07-30 | GSE16681 | GEO

MicroRNA expression data from differentiation of human H9 ESCs into definitive endoderm on MEF feeder layers

Project description:Pluripotent hESCs can differentiate into the three primary embryonic lineages (endoderm, mesoderm, ectoderm) as well as extraembryonic tissues. Definitive endoderm (DE) is the first step into the pathway to endoderm dreived tissues (pancreas, liver, gut, lung). We used microarrays to detail the changes in microRNA expression during the transition from pluripotent hESCs into definitive endoderm.

2010-07-30 | GSE16689 | GEO

MicroRNA expression data from differentiation of human Cyt49 ESCs into definitive endoderm on MEF feeder layers

Project description:Pluripotent hESCs can differentiate into the three primary embryonic lineages (endoderm, mesoderm, ectoderm) as well as extraembryonic tissues. Definitive endoderm is the first step into the pathway to endoderm dreived tissues (pancreas, liver, gut, lung) We used microarrays to detail the changes in microRNA expression during the transition from pluripotent hESCs into definitive endoderm

2010-07-30 | GSE16687 | GEO

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