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| Status |
Public on Dec 01, 2014 |
| Title |
Expression of imprinted non-coding RNAs from the DLK1-DIO3 locus in human embryonic stem cells advantages neural lineage differentiation |
| Organism |
Homo sapiens |
| Experiment type |
Expression profiling by array
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| Summary |
Pluripotent stem cells are increasingly used for therapeutic models, including transplantation of neural progenitors derived from human embryonic stem cells (hESCs). Recently, long non-coding RNAs (lncRNAs), including Maternally Expressed Gene 3 (MEG3) that is derived from DLK1-DIO3 imprinted locus, were found to be expressed during neural developmental events. Their deregulations are associated with various neurological diseases. The DLK1-DIO3 imprinted locus encodes abundant non-coding RNAs (ncRNAs) that are regulated by differential methylation on the locus. The aim of our research is to study the correlation between the DLK1-DIO3 derived ncRNAs and the capacity of hESC neural lineage differentiation. We classified hESCs into MEG3-ON and MEG3-OFF based on the expression levels of MEG3 as well as its downstream miRNAs by qRT-PCR. Initial embryoid body (EB) formation was conducted to examine the three germ layer differentiation ability. cDNA microarray was used to analyze the gene expression profiles of hESCs. Directed neural lineage differentiation was performed, followed by analysis of neural lineage marker expression levels and neurite formation via qRT-PCR and immunocytochemistry methods to investigate the capacity of neural differentiation in MEG3-ON and MEG3-OFF hESCs
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| Overall design |
To study the correlations between the DLK1-DIO3 derived ncRNAs and differentiation capacity of hESC toward neural lineage, we classified hESCs into MEG3-ON and MEG3-OFF based on the expression levels of MEG3 by qRT-PCR and validated the methylation patterns of DLK1-DIO3 locus by bisulfite-sequencing. Then we conducted transcriptome analysis of these two groups of hESCs by cDNA microarray. This set contained 12 microarray samples, including 4 MEG3-ON hESCs, 7 MEG3-OFF hESCs, and 1 embryoid body as the negative control of pluripotentcy for pluritest.
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| Contributor(s) |
Mo C, Tai K, Lin S |
| Citation(s) |
25559585 |
| Submission date |
Jun 16, 2014 |
| Last update date |
Aug 13, 2018 |
| Contact name |
Kang-Yu Tai |
| E-mail(s) |
auradunbine@gmail.com
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| Organization name |
National Taiwan University
|
| Department |
Genome and Systems Biology Degree Program
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| Lab |
625
|
| Street address |
Yonglin Biomedical Engineering Hall, No.49, Fanglan Rd.
|
| City |
Taipei |
| ZIP/Postal code |
106038 |
| Country |
Taiwan |
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| Platforms (1) |
| GPL10558 |
Illumina HumanHT-12 V4.0 expression beadchip |
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| Samples (12)
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| Relations |
| BioProject |
PRJNA252801 |
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