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Transcription profiling of human olfactory ecto-mesenchymal stem cells (hOE-MSCs) from familial dysautonomia (FD) patients with or without kinetin treatment

ABSTRACT: Human olfactory ecto-mesenchymal stem cells (hOE-MSCs) from controls and familial dysautonomia (FD) patients were cultured in either sphere-forming conditions (ITS + EGF + bFGF) or in the presence of retinoic acid, forskolin and Sonic Hedgehog (rafnshh) for 7 days to induce neuroglial differentiation and were also treated or not with kinetin (100 mM for 48h) which corrects the aberrant splicing of IKBKAP mRNA. We used the recently described model of human olfactory ecto-mesenchymal stem cells to identify genes differentially expressed between controls and familial dysautonomia patients, and also the genes sensitive to kinetin which corrects aberrant splicing of IKBKAP mRNA

ORGANISM(S): Homo sapiens

PROVIDER: GSE27915 | GEO | 2012/01/01

SECONDARY ACCESSION(S): PRJNA139803

REPOSITORIES: GEO

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Transcription profiling of human olfactory ecto-mesenchymal stem cells (hOE-MSCs) from familial dysautonomia (FD) patients with or without kinetin treatment

Project description:Human olfactory ecto-mesenchymal stem cells (hOE-MSCs) from controls and familial dysautonomia (FD) patients were cultured in either sphere-forming conditions (ITS + EGF + bFGF) or in the presence of retinoic acid, forskolin and Sonic Hedgehog (rafnshh) for 7 days to induce neuroglial differentiation and were also treated or not with kinetin (100 mM for 48h) which corrects the aberrant splicing of IKBKAP mRNA. We used the recently described model of human olfactory ecto-mesenchymal stem cells to identify genes differentially expressed between controls and familial dysautonomia patients, and also the genes sensitive to kinetin which corrects aberrant splicing of IKBKAP mRNA Total RNAs were extracted from 20 samples including: 4 control and 4 FD hOE-MSCs-derived sphere cultures, 4 control and 4 FD rafnshh-treated hOE-MSCs, 4 FD rafnshh-treated hOE-MSCs in the presence of kinetin

2012-01-01 | E-GEOD-27915 | biostudies-arrayexpress

Transcription profiling by array of human olfactory ecto-mesenchymal stem cells in familial dysautonomia

Project description:Exploration of transcriptome expression in 5 control and 4 familial dysautonomia (FD) human olfactory ecto-mesenchymal stem cells (hOE-MSCs) at very early (P1 and P2) and later (P5 and P9) cell passages.

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RNA sequencing of hiPSC derived neural crest populations from Familial Dysautonomia patients

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Project description:We have generated expression profiles of induced pluripotent stem cells (iPSCs) and iPSC-derived neural crest populations from Familial Dysautonomia patients. These profiles were compared to a normal iPSC line that does not harbor the IKBKAP mutation. All cell types were differentiated from patient derived iPSCs. Bulk iPSCs were harvested for RNA and the neural crest populations were sorted on day 18 for p75/HNK1 before RNA isolation.

2016-10-25 | E-GEOD-67073 | biostudies-arrayexpress

Transcriptome analyses of the nervous system of Familial Dysautonomia-model mice identify novel cellular pathways dependent on Ikbkap/Elp1 (CNS)

Project description:Familial Dysautonomia (FD; OMIM #223900) is both a developmental and progressive autosomal recessive neurodegenerative disorder that results from a nervous-system reduction in the IKAP/ELP1 protein due to a mutation in a splice acceptor site of the IKBKAP/ELP1 gene. The function of this gene in the nervous system is unresolved. To obviate the embryonic lethality of mice completely null for Ikbkap, we generated conditional knock out (CKO) mouse models for FD that recapitulate hallmarks of the human disease. To derive insight into potential intracellular functions for Ikbkap, we conducted a genome-wide transcriptome analysis of both the peripheral and central nervous systems from Ikbkap CKO mice, and identify over 100 shared misregulated genes that reveal roles for IKAP in several metabolic and signaling pathways in addition to synaptic transmission. Importantly, our data are the first to demonstrate that in the absence of IKAP, neurons undergo intracellular stress that is marked by transcriptional elevations in ATF5, p53, and several CREB target genes, as well as an increase in reactive oxygen species. These data will aid in the identification of common upstream and downstream targets for therapeutics for preventing the progressive demise of neurons in FD and potentially other neuropathies.

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Effects of IKAP/hELP1 deficiency on gene expression in differentiating neuroblastoma cells, implications for Familial dysautonomia

Project description:Investigate IKAP importance in the development of neuronal cells, in order to understand Familial dysautonomia phenotype.

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Homo sapiens

Project description:Transcription profiling of human olfactory ecto-mesenchymal stem cells (hOE-MSCs) from familial dysautonomia (FD) patients with or without kinetin treatment

| PRJNA139803 | ENA

Effects of IKAP/hELP1 deficiency on gene expression in differentiating neuroblastoma cells, implications for Familial dysautonomia

Project description:Investigate IKAP importance in the development of neuronal cells, in order to understand Familial dysautonomia phenotype. Stable SHSY5Y cell lines, and control cells, in differentiated and un-differentiated conditions.

2011-01-06 | E-GEOD-26458 | biostudies-arrayexpress

Molecular and functional characterization of FD-iPSC derived neural crest precursor cells

Project description:Global gene expression analysis of FD-iPSC and deribved neural crest cells Here we report the derivation of patient specific Familial Dysautonomia-iPSCs and their directed differentiation into multiple cell types capable of modeling the tissue specific splicing defect in vitro.

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Disease Severity in Familial Dysautonomia

Project description:<p>Familial Dysautonomia (FD) is a developmental and degenerative genetic disease that manifests in the neural crest cells and peripheral nervous system (PNS). Despite all FD patients having the same mutation in <i>IKBKAP</i>, patients present with varying disease severity, ranging from mild to severe. We used the human pluripotent stem cell technology to recapitulate this varying disease severity in the dish. Further, we found that severe, but not mild patients harbor mutations in candidate modifier genes that may contribute to severe disease presentation.</p>

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