Expression data of e13.5 Sox-GFP forming digit, e14.5 Lgr5-GFP+ interzone and e14.5 GFP- surrounding tissues in digit
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE110281 | GEO | 2018/02/08
REPOSITORIES: GEO
Similar Datasets
Project description:Expression data of e13.5 Sox-GFP forming digit, e14.5 Lgr5-GFP+ interzone and e14.5 GFP- surrounding tissues in digit
| PRJNA433371 | ENA
Project description:Nascent embryonic joints, interzones, contain a distinct cohort of progenitor cells responsible for the formation of the majority of articular tissues. However, to date the interzone has largely been studied using in situ analysis for candidate genes in the context of the embryo rather than using an unbiased genome wide expression analysis on isolated interzone cells, leaving significant controversy regarding the exact role of the intermediate and outer interzone layers in joint formation. Therefore, in this study, using laser capture microdissection (three biological replicates), we selectively harvested the intermediate and outer interzones of mouse embryos at gestational age 15.5 days, just prior to cavitation, when the differences between the layers should be most profound. Microarray analysis (Agilent Whole Mouse Genome Oligo Microarrays) was performed and the differential gene expression between the intermediate interzone cells and outer interzone cells was examined by performing a 2-sided paired student t-test and pathway analysis. 197 genes were differentially expressed (M-bM-^IM-% 2-fold) between the intermediate interzone and the outer interzone with a p-value M-bM-^IM-$ 0.01. Of these, 91 genes showed higher expression levels in the intermediate interzone and 106 were expressed higher in the outer interzone. Pathway analysis of differentially expressed genes suggests an important role for inflammatory processes in the interzone layers, especially in the intermediate interzone, and hence in joint and articular cartilage development. The high representation of genes relevant to chondrocyte hypertrophy and endochondral ossification in the outer interzone suggests that it undergoes endochondral ossification. 2 study groups (intermediate and outer interzone) with three biological replicates (1 biological replicate = 1 embryo)
2014-09-22 | E-GEOD-51098 | biostudies-arrayexpress
Project description:Nascent embryonic joints, interzones, contain a distinct cohort of progenitor cells responsible for the formation of the majority of articular tissues. However, to date the interzone has largely been studied using in situ analysis for candidate genes in the context of the embryo rather than using an unbiased genome wide expression analysis on isolated interzone cells, leaving significant controversy regarding the exact role of the intermediate and outer interzone layers in joint formation. Therefore, in this study, using laser capture microdissection (three biological replicates), we selectively harvested the intermediate and outer interzones of mouse embryos at gestational age 15.5 days, just prior to cavitation, when the differences between the layers should be most profound. Microarray analysis (Agilent Whole Mouse Genome Oligo Microarrays) was performed and the differential gene expression between the intermediate interzone cells and outer interzone cells was examined by performing a 2-sided paired student t-test and pathway analysis. 197 genes were differentially expressed (≥ 2-fold) between the intermediate interzone and the outer interzone with a p-value ≤ 0.01. Of these, 91 genes showed higher expression levels in the intermediate interzone and 106 were expressed higher in the outer interzone. Pathway analysis of differentially expressed genes suggests an important role for inflammatory processes in the interzone layers, especially in the intermediate interzone, and hence in joint and articular cartilage development. The high representation of genes relevant to chondrocyte hypertrophy and endochondral ossification in the outer interzone suggests that it undergoes endochondral ossification.
2014-09-22 | GSE51098 | GEO
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Project description:As the only truly flying mammals, bats use their unique wing formed from elongated digits connected by membranes to power their flight. The forelimb of bats consists of four elongated digits (digits II-V) and one shorter digit (digit I) that is morphologically similar to the hindlimb digits. Elongation of bat forelimb digits is thought to results from changes in the temporal and spatial expression of a number of developmental genes. As a result, comparing gene expression profiles between short and elongated digit morphologies of the fore- and hindlimbs may elucidate the molecular mechanisms underlying digit elongation in bats. Here, we performed a large-scale analysis of gene expression of forelimb digit I, forelimb digits II-V, and all five hindlimb digits in Myotis ricketti using digital gene expression tag profiling approach. Results of this study not only implicate several developmental genes as robust candidates underlying digit elongation in bats, but also provide a better understanding of the genes involved in autopodial development in general. A large-scale analysis of gene expression of 3 different parts of autopods in Myotis ricketti using digital gene expression tag profiling approach.
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Project description:Innate regeneration following digit tip amputation is one of the few examples of epimorphic regeneration in mammals. Digit tip regeneration is mediated by the blastema, the same structure invoked during limb regeneration in some lower vertebrates. By genetic lineage analyses in mice, the digit tip blastema has been defined as a population of heterogeneous, lineage restructed progenitor cells. These previous studies, however, do not comprehensively evaluate blastema heterogeneity or address lineage restruction of closely related cell types. Here we report single cell RNA sequencing of over 38,000 cells from mouse digit tip blastemas and unamputated control digit tips and generate an atlas of the cell types participating in digit tip regeneration.
2020-02-24 | GSE143888 | GEO
Project description:Our prior work indicated that the transcription factor Creb5 plays a crucial role in the genesis of synovial joints. Here, we perform an integrative analysis of the transcriptome, chromatin accessibility, and Creb5-chromatin occupancy in Creb5-expressing synovial joint progenitor cells. This analysis revealed that Creb5 directly binds to both its own two promoters and to the regulatory regions of the early joint markers, Gdf5 and Sfrp2; each of whose expression in the joint-interzone is Creb5-dependent. Functional enhancer analysis indicated that Creb5 binding sites in its own two promoters are necessary for these sequences to drive transgene expression in a pattern that mimics endogenous Creb5 expression. While Creb5 directly regulates both Gdf5 and Sfrp2 expression in the inner joint-interzone by binding to either CREs or TREs in their regulatory elements, Creb5 activates Barx1 expression specifically in the outer joint-interzone; and thus initiates both the formation of the joint-interzone and regionalization of cell fates within this tissue.
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Project description:Our prior work indicated that the transcription factor Creb5 plays a crucial role in the genesis of synovial joints. Here, we perform an integrative analysis of the transcriptome, chromatin accessibility, and Creb5-chromatin occupancy in Creb5-expressing synovial joint progenitor cells. This analysis revealed that Creb5 directly binds to both its own two promoters and to the regulatory regions of the early joint markers, Gdf5 and Sfrp2; each of whose expression in the joint-interzone is Creb5-dependent. Functional enhancer analysis indicated that Creb5 binding sites in its own two promoters are necessary for these sequences to drive transgene expression in a pattern that mimics endogenous Creb5 expression. While Creb5 directly regulates both Gdf5 and Sfrp2 expression in the inner joint-interzone by binding to either CREs or TREs in their regulatory elements, Creb5 activates Barx1 expression specifically in the outer joint-interzone; and thus initiates both the formation of the joint-interzone and regionalization of cell fates within this tissue.
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Project description:Our prior work indicated that the transcription factor Creb5 plays a crucial role in the genesis of synovial joints. Here, we perform an integrative analysis of the transcriptome, chromatin accessibility, and Creb5-chromatin occupancy in Creb5-expressing synovial joint progenitor cells. This analysis revealed that Creb5 directly binds to both its own two promoters and to the regulatory regions of the early joint markers, Gdf5 and Sfrp2; each of whose expression in the joint-interzone is Creb5-dependent. Functional enhancer analysis indicated that Creb5 binding sites in its own two promoters are necessary for these sequences to drive transgene expression in a pattern that mimics endogenous Creb5 expression. While Creb5 directly regulates both Gdf5 and Sfrp2 expression in the inner joint-interzone by binding to either CREs or TREs in their regulatory elements, Creb5 activates Barx1 expression specifically in the outer joint-interzone; and thus initiates both the formation of the joint-interzone and regionalization of cell fates within this tissue.
2025-06-05 | GSE281189 | GEO
Project description:Our prior work indicated that the transcription factor Creb5 plays a crucial role in the genesis of synovial joints. Here, we perform an integrative analysis of the transcriptome, chromatin accessibility, and Creb5-chromatin occupancy in Creb5-expressing synovial joint progenitor cells. This analysis revealed that Creb5 directly binds to both its own two promoters and to the regulatory regions of the early joint markers, Gdf5 and Sfrp2; each of whose expression in the joint-interzone is Creb5-dependent. Functional enhancer analysis indicated that Creb5 binding sites in its own two promoters are necessary for these sequences to drive transgene expression in a pattern that mimics endogenous Creb5 expression. While Creb5 directly regulates both Gdf5 and Sfrp2 expression in the inner joint-interzone by binding to either CREs or TREs in their regulatory elements, Creb5 activates Barx1 expression specifically in the outer joint-interzone; and thus initiates both the formation of the joint-interzone and regionalization of cell fates within this tissue.
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