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Mus musculus

ABSTRACT: Effect of miR-203 on the transcriptomic profile of IPSCs and IPSC-derived teratomas

PROVIDER: PRJNA322008 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3539870.fastq.gz	Fastqsanger.gz
	SRR3539861.fastq.gz	Fastqsanger.gz
	SRR3539862.fastq.gz	Fastqsanger.gz
	SRR3539863.fastq.gz	Fastqsanger.gz
	SRR3539864.fastq.gz	Fastqsanger.gz

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Effect of miR-203 on the transcriptomic profile of IPSCs and IPSC-derived teratomas

Project description:The balance between pluripotency and differentiation is critical during development and regeneration. miR-203 is a microRNA previously involved in differentiation of different tissues as well as in tumor suppression in multiple malignancies. We have shown that miR-203 is able to promote differentiation of embryonic stem (ES) and induced pluripotent stem (iPS) cells without decreasing pluripotency. We have observed that transient expression of miR-203 significantly improves the efficiency of ES/iPS cells in the generation of quimeras and tetraploid complementation assays, in addition to inducing complex embryo-like structures when these pluripotent cells are injected in mice. In the present RNA seq, we intend to analyze the trascriptomic profile of WT IPSCs, compared to miR-203 KO IPSCs and miR-203 tKI IPSCs (in which we have induced a transient over-expression of miR-203). Moreover, we analyze the mRNA profiles of the teratomas derived from those IPSCs.

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Project description:Time course of the miR-203 effect on the transcriptomic profile of IPSCs

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Enhanced Pluripotent Cell Function through miR-203-mediated Control of DNA Methylation

Project description:Maintaining a full differentiation potential along self-renewal ability is a major property of stem cells during development and regeneration. miR-203 is a microRNA previously involved in skin differentiation and tumor suppression. We show here that transient expression of miR-203 enhances the potential of embryonic (ESC) and induced pluripotent stem cells (iPSC) in contributing to multiple lineages without decreasing their self-renewal properties. In fact, miR-203 significantly improves the efficiency of ES/iPS cells in the generation of quimeras and tetraploid complementation assays, in addition to improving the generation of complex teratomas and embryo-like structures in vivo. These effects are mediated by the direct miR-203-dependent repression of de novo DNA methyltransferases Dnmt3a and Dnmt3b, leading to genome-wide demethylation of pluripotent cells. Transient exposure to miR-203 improves functional differentiation and maturation of pluripotent cells into cardiomyocytes in a Dnmt3a/b-dependent manner, suggesting the possible therapeutic uses of this microRNA in regenerative medicine.

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Time course of the miR-203 effect on the transcriptomic profile of IPSCs

Project description:The balance between pluripotency and differentiation is critical during development and regeneration. miR-203 is a microRNA previously involved in differentiation of different tissues as well as in tumor suppression in multiple malignancies. We have shown that miR-203 is able to promote differentiation of embryonic stem (ES) and induced pluripotent stem (iPS) cells without decreasing pluripotency. We have observed that transient expression of miR-203 significantly improves the efficiency of ES/iPS cells in the generation of quimeras and tetraploid complementation assays, in addition to inducing complex embryo-like structures when these pluripotent cells are injected in mice. In the present RNA seq, we intend to analyze the trascriptomic profile of WT IPSCs transiently treated with DOX to induce miR-203. We analyzed the transcriptomic profile at different time points before and after the induction.

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Analysis of miR-203 transient over-expression on stemness potential of pluripotent cells

Project description:The balance between pluripotency and differentiation is critical during development and regeneration. miR-203 is a microRNA previously involved in differentiation of different tissues as well as in tumor suppression in multiple malignancies. We show here that miR-203 is able to promote differentiation of embryonic stem (ES) and induced pluripotent stem (iPS) cells without decreasing pluripotency. We have observed that transient expression of miR-203 significantly improves the efficiency of ES/iPS cells in the generation of chimeras and tetraploid complementation assays, in addition to inducing complex embryo-like structures when these pluripotent cells are injected in mice. In the present RNA seq, we intend to demonstrate that transient over-expression of miR-203 make pluripotent cells (IPSCs) more similar to ES cells, also in terms of their transcriptomic profile.

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Project description:The balance between pluripotency and differentiation is critical during development and regeneration. miR-203 is a microRNA previously involved in differentiation of different tissues as well as in tumor suppression in multiple malignancies. We have shown that miR-203 is able to promote differentiation of embryonic stem (ES) and induced pluripotent stem (iPS) cells without decreasing pluripotency. We have observed that transient expression of miR-203 significantly improves the efficiency of ES/iPS cells in the generation of quimeras and tetraploid complementation assays, in addition to inducing complex embryo-like structures when these pluripotent cells are injected in mice. In the present RNA seq, we intend to analyze the trascriptomic profile of miR-203 WT, KO and KI MEFs reprogrammed to inducible pluripotent cells (iPSCs) at different time points.

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Effect of Dnmt3a/3b transient silencing in WT iPSCs and comparison with miR-203 tKI iPSCs

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