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Comparative gene expression profiling of serum-free and FBS treated colorectal TIC cultures

ABSTRACT: To induce a differentiated phenotype, primary colorectal TIC cultures were grown in 10% FBS containing conditions. To analyze gene expression changes upon induction of a differentiated phenotype, total RNA of cells cultured in FBS containing conditions and control cells cultured under serum-free conditions was isolated and comparative gene expression profiling was performed. RNA was obtained from five different patient derived spheroid cultures grown in serum-free or 10% FBS containing culture medium.

ORGANISM(S): Homo sapiens

SUBMITTER: Taronish Dubash

PROVIDER: E-GEOD-72543 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Comparative gene expression profiling of serum-free and FBS treated colorectal TIC cultures

Project description:To induce a differentiated phenotype, primary colorectal TIC cultures were grown in 10% FBS containing conditions. To analyze gene expression changes upon induction of a differentiated phenotype, total RNA of cells cultured in FBS containing conditions and control cells cultured under serum-free conditions was isolated and comparative gene expression profiling was performed.

2016-08-20 | GSE72543 | GEO

Comparative gene expression profiling of serum-free and FBS treated adherent primary pancreatic TIC cultures

Project description:To induce a differentiated phenotype, primary pancreatic TIC cultures were grown in 10% FBS containing conditions. To analyze gene expression changes upon induction of a differentiated phenotype, total RNA of cells cultured in FBS containing conditions and parallel control cells cultured under serum-free conditions was isolated and comparative gene expression profiling was performed.

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Comparative gene expression profiling of serum-free and FBS treated adherent primary pancreatic TIC cultures

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Human umbilical cord blood-derived endothelial colony forming cells under serum-free conditions

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Examination of the effect of exosome in FBS on myogenic differentiation

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Human umbilical cord blood-derived endothelial colony forming cells under serum-free conditions

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Micro-RNAs from Plasma-Derived Small Extracellular Vesicles as Potential Biomarkers for Tic Disorders Diagnosis

Project description:tic disorders (TDs) are a series of childhood neuropsychiatric disorders characterized by invol-untary motor and/or vocal tics and commonly comorbid with several other psychopathological and/or behavioral disorders. In the present study, we aimed to identify serum small extracellular vesicles (sEVs) derived microRNAs (miRNAs) from the serum samples of children for Tic Disorders Diagnosis

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Simple differentiation method using FBS identifies DUSP6 as a marker for fine-tuning of FGF-ERK signaling activity in human pluripotent stem cells

Project description:Assessment of differentiation potential is a basic requirement to obtain qualified human pluripotent stem cells (hPSCs). Here, we report a simple differentiation method using fetal bovine serum (FBS) to estimate differentiation potential and propensity of hPSCs. PluriTest using RNA-sequencing showed that cells differentiated after treatment with 5% FBS. Expression patterns of three germ layer markers revealed that cells cultured in Knockout Serum Replacement-containing medium (KSR) with mouse feeder cells had higher differentiation potential than cells cultured in a chemically defined medium (E8) with recombinant matrix proteins, especially into the mesoderm and endoderm lineages. Analysis of differentially expressed genes between KSR and E8 identified DUSP6 as a marker for where cells had been cultured. Expression of DUSP6 correlated with FGF-ERK signaling activity. Fine-tuning of FGF-ERK signaling activity to a range that can shut down DUSP6 transcription but sustain NANOG transcription partially increased the differentiation potential. Our data suggest that differentiation with 5% FBS is good to estimate differentiation potential and propensity at the early stage, and that DUSP6 is an excellent marker to monitor ERK signaling activity.

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The effect of FBS and cyclic mechanical stretch on serum starved mesenchymal stem cells

Project description:Purpose: Cyclic mechanical stretch (CMS) promoted proliferation of serum starved mesenchymal stem cells (MSCs) by inhibiting miR-337 expression, similar to FBS. In order to reveal the underlying mechanisms of both CMS and FBS on MSC activation, as well as the regulatory role of miR-337, this research performed high-throughput RNA sequencing (RNA-seq) on MSCs isolated from both wild-type (ET)- and miR-337 knockout- (miR-337-/-) rats. Methods: MSCs isolated form 2-month-old wild-type (WT) and miR-337 knockout (-/-) rats and cultured in vitro to passage 3. After serum starvation for 8h, MSCs were treated with FBS or 10% CMS for another 24h before deep sequencing in triplicate, using Illumina GAIIx. The sequence reads that passed quality filters were analyzed at the transcript isoform level. Results: Using an optimized data analysis workflow, we mapped about 40 million sequence reads per sample. We identified 2472 differentially expressed genes (DEGs) between CMS-stimulated vs. SSt conditions, 2468 DEGs FBS-treated vs. SSt groups. However, only 97 DEGs were identified between CMS and FBS groups, indicating that CMS and FBS groups are more similar to each other and both CMS and FBS groups are quite different from the SSt group. Analysis of DEGs between CMS- or FBS-treated and SSt -treated group revealed that CMS and FBS stimulation activated similar biological processes, of which, PI3K-Akt-mTOR pathway was highly enriched. However, PI3K-Akt-mTOR pathway was not enriched in miR-337-/- MSCs, indicating constitutive activation of this pathway. Conclusions: Our RNA-seq data revealed that both CMS and FBS activates quiescent MSCs through regulating similar genes and pathways. miR-337 is one of the main factors that regulate MSC activation by targeting PI3K-Akt pathway.

2021-12-02 | GSE189845 | GEO

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