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A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [RNA-seq]

ABSTRACT: A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [RNA-seq]

PROVIDER: PRJNA756269 | ENA |

REPOSITORIES: ENA

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A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIP-seq]

Project description:The mammalian Ten-eleven translocation (TET) family proteins regulate the epigenome through catalytic activity (CA)-dependent and -independent functions. While catalytic activity of TETs has been intensely studied as DNA demethylation enzymes, little is known about their CA-independent function in early embryo development. Here we defined the CA-independent function of TET1 in naïve-to-formative pluripotent states transition. Using a proteomics method, we mapped the TET1 interactome and identified Paraspeckle component 1 (PSPC1) as a partner of TET1 for transcriptional repression at the bivalent genes in early development. Genome-wide location analysis revealed that PSPC1-bound regions largely overlap with TET1 and Polycomb repressive complex 2 (PRC2) subunits. Functional studies with genetic methods indicated that PSPC1 and TET1 repress, while lncRNA Neat1 activates the bivalent genes during their transcriptional activation. In embryonic stem cell (ESC) state, Neat1 tethers TET1, PSPC1, and PRC2 at promoters. During the ESCs to formative Epiblast like stem cells (EpiLCs) differentiation, PSPC1 and TET1 repress the PRC2 affinity to nascent mRNA transcripts of bivalent genes, while Neat1 facilitates PRC2 binding to those transcripts. Our study reveals a molecular mechanism by which proteins TET1 and PSPC1, and lncRNA Neat1 dynamically regulate gene transcription by modulating the PRC2 activity in pluripotent states transition.

2022-06-07 | GSE182442 | GEO

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIRP-Seq]

2022-06-07 | GSE199265 | GEO

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [RNA-seq]

2022-06-07 | GSE182441 | GEO

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [H3 ChIP-Seq]

2022-06-07 | GSE199266 | GEO

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency

Project description:A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency

| PRJNA756267 | ENA

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIRP-Seq]

Project description:A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIRP-Seq]

| PRJNA819087 | ENA

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIP-seq]

Project description:A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [ChIP-seq]

| PRJNA756270 | ENA

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [H3 ChIP-Seq]

Project description:A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency [H3 ChIP-Seq]

| PRJNA819086 | ENA

A TET1-PSPC1-Neat1 molecular axis modulates PRC2 functions in controlling stem cell bivalency

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

2022-06-07 | GSE182443 | GEO

RNA sequencing (RNA-SEQ) of PSPC1 knockdown by shRNA in A549 cells

Project description:We show that PSPC1 is required for cancer cell motilities and stemness properties in vitro and lung metastasis in vivo. We used high throughput sequencing to analyze the PSPC1 regulated gene expression. Loss of PSPC1 results in significant gene expression level changes in thousands of individual transcripts in key regulators of the EMT, CSCs and TGFb signaling.

2018-02-02 | GSE65523 | GEO

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