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Gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day 15.5

ABSTRACT: the goal of the study was to compare gene expression between control and Pbx1; Emx1-cre mutant corteces at e15.5

ORGANISM(S): Mus musculus

PROVIDER: GSE73287 | GEO | 2015/11/10

SECONDARY ACCESSION(S): PRJNA301562

REPOSITORIES: GEO

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gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day 15.5

Project description:the goal of the study was to compare gene expression between control and Pbx1; Emx1-cre mutant corteces at e15.5 E15.5 whole cortex was dissected for the analysis. Control embryo genotype was Pbx1F/+. Mutant embryo genotype was Pbx1F/-; Emx1-cre. 4 corteces of each genotype were used for the analysis: 4 controls and 4 mutants, 8 samples total.

2015-11-10 | E-GEOD-73287 | biostudies-arrayexpress

gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day 12.5

Project description:the goal of the study was to compare gene expression between control and Pbx1; Emx1-cre mutant corteces at e12.5

2015-11-10 | GSE73286 | GEO

gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day 12.5

Project description:the goal of the study was to compare gene expression between control and Pbx1; Emx1-cre mutant corteces at e12.5 E12.5 whole cortex was dissected for the analysis. Control embryo genotype was Pbx1F/+. Mutant embryo genotype was Pbx1F/-; Emx1-cre. 4 corteces of each genotype were used for the analysis: 4 controls and 4 mutants, 8 samples total.

2015-11-10 | E-GEOD-73286 | biostudies-arrayexpress

Genome-wide distribution of Pbx1/2/3 in mouse cortex at embryonic day 15.5 [ChIP-seq]

Project description:We demonstrate using conditional mutagenesis that Pbx1, with and without Pbx2+/ sensitization, regulates regional identity and laminar patterning of the developing mouse neocortex in cortical progenitors (Emx1-Cre) and in newly generated neurons (Nex1-Cre). Pbx1/2 mutants have three salient molecular phenotypes of cortical regional and laminar organization: hypoplasia of the frontal cortex, ventral expansion of the dorsomedial cortex, and ventral expansion of Reelin expression in the cortical plate of the frontal cortex, concomitant with an inversion of cortical layering in the rostral cortex. Molecular analyses, including PBX ChIP-seq, provide evidence that PBX promotes frontal cortex identity by repressing genes that promote dorsocaudal fate. Chromatin immunoprecipitation was performed using antibody against Pbx1/2/3 (sc-888, Santa Cruz). Wild type E15.5 mouse whole cortex was used for the analysis.

2016-03-12 | E-GEOD-79152 | biostudies-arrayexpress

Genome-wide distribution of Pbx1/2/3 in mouse cortex at embryonic day 15.5 [ChIP-seq]

2016-03-12 | GSE79152 | GEO

Genome-wide distribution of Pbx1/2/3 in mouse cortex at embryonic day 12.5 [ChIP-seq]

2016-02-27 | GSE78720 | GEO

Genome-wide distribution of Pbx1/2/3 in mouse cortex at embryonic day 12.5 [ChIP-seq]

Project description:We demonstrate using conditional mutagenesis that Pbx1, with and without Pbx2+/ sensitization, regulates regional identity and laminar patterning of the developing mouse neocortex in cortical progenitors (Emx1-Cre) and in newly generated neurons (Nex1-Cre). Pbx1/2 mutants have three salient molecular phenotypes of cortical regional and laminar organization: hypoplasia of the frontal cortex, ventral expansion of the dorsomedial cortex, and ventral expansion of Reelin expression in the cortical plate of the frontal cortex, concomitant with an inversion of cortical layering in the rostral cortex. Molecular analyses, including PBX ChIP-seq, provide evidence that PBX promotes frontal cortex identity by repressing genes that promote dorsocaudal fate. Chromatin immunoprecipitation was performed using antibody against Pbx1/2/3/ (sc-888, Santa Cruz). Wild type E12.5 mouse whole cortex was used for the analysis.

2016-02-27 | E-GEOD-78720 | biostudies-arrayexpress

gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day

Project description:This SuperSeries is composed of the SubSeries listed below.

2015-11-10 | GSE73288 | GEO

gene expression analysis in Pbx1; Emx1-cre mutant cortex at embryonic day

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-11-10 | E-GEOD-73288 | biostudies-arrayexpress

DNA methylation activated full-length EMX1 facilitates metastasis through EMX1-EGFR-ERK axis in hepatocellular carcinoma

Project description:Altered DNA methylation is a crucial epigenetic event in hepatocellular carcinoma (HCC) development and progression. Through methylation-transcriptomic analysis, we identified a set of sixty potential DNA methylation-based epidriver genes. This set of genes focuses on the hypermethylation of EMX1, which is frequently observed in hepatobiliary tumors. Despite of its frequent occurrence, the function of EMX1 remains largely unknown. By utilizing bisulfite-next-generation sequencing, we have detected EMX1 DNA hypermethylation on the gene body, which is positively correlated with EMX1 mRNA expression. Further analysis revealed that EMX1 mRNA terminal exon splicing in HCC generated two protein isoforms: EMX1 full length (EMX1-FL) and alternative terminal exon splicing isoform (EMX1-X1). Cellular functional assays demonstrated that gain-of-function EMX1-FL, but not EMX1-X1, induced HCC cells migration and invasion while silencing EMX1-FL inhibited HCC cells motility. This result was further validated by in vivo tumor metastasis models. Mechanistically, EMX1-FL bound to EGFR promoter, promoting EGFR transcription and activating EGFR-ERK signaling to trigger tumor metastasis. Therefore, EGFR may be a potential therapeutic target for EMX1-high expression HCC. Our work illuminated the crucial role of gene body hypermethylation-activated EMX1-FL in promoting tumorigenesis and metastasis in HCC. These findings pave the way for targeting the EMX1-EGFR axis in HCC tumorigenicity and metastasis.

2023-11-29 | GSE245505 | GEO

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