Transcriptome analysis after TINCR knockdown
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA891251 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR21930544_1.fastq.gz | Fastqsanger.gz | |||
| SRR21930544_2.fastq.gz | Fastqsanger.gz | |||
| SRR21930545_1.fastq.gz | Fastqsanger.gz | |||
| SRR21930545_2.fastq.gz | Fastqsanger.gz | |||
| SRR21930546_1.fastq.gz | Fastqsanger.gz |
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Project description:Several of the thousands of human long non-coding RNAs (lncRNAs) have been functionally characterized; however, potential roles for lncRNAs in somatic tissue differentiation remain poorly understood. Here we show that a 3.7kb lncRNA, terminal differentiation-induced ncRNA (TINCR), controls human epidermal differentiation by a post-transcriptional mechanism. TINCR is required for high mRNA abundance of key differentiation genes, many of which are mutated in human skin diseases, including FLG, LOR, ALOXE3, ALOX12B, ABCA12, CASP14 and ELOVL3. TINCR-deficient epidermis lacked terminal differentiation ultrastructure, including keratohyalin granules and intact lamellar bodies. Genome-scale RNA interactome analysis revealed that TINCR interacts with a suite of differentiation mRNAs. TINCR-mRNA interaction occurs through a 25 nucleotide M-bM-^@M-^\TINCR boxM-bM-^@M-^] motif which is strongly enriched in interacting mRNAs and required for TINCR binding. A high-throughput screen to analyze TINCR binding capacity to ~9,400 human recombinant proteins revealed direct binding of TINCR RNA to the Staufen1 (STAU1) protein. STAU1-deficient tissue recapitulated the impaired differentiation seen with TINCR depletion. Loss of UPF1 and UPF2, both of which are required for STAU1-mediated RNA decay (SMD), however, lacked differentiation impacts. Instead, the TINCR/STAU1 complex seems to mediate stabilization of differentiation mRNAs, such as KRT80. These data identify TINCR as a key lncRNA required for somatic tissue differentiation, which occurs through inducible lncRNA binding to differentiation mRNAs to ensure their expression. Examination of TINCR-binding RNAs using two independent pools of TINCR-targeting oligos
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Project description:Purpose: Identify RNA interactome of lncRNA TINCR Methods: Primary melanoma cell lines WM902B and MMC70 lysates hybridized with TINCR antisense DNA oligos Results: we found that TINCR silencing induces activation of translation of ATF4 and other stress responsive RNAs.
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Project description:Several of the thousands of human long non-coding RNAs (lncRNAs) have been functionally characterized; however, potential roles for lncRNAs in somatic tissue differentiation remain poorly understood. Here we show that a 3.7kb lncRNA, terminal differentiation-induced ncRNA (TINCR), controls human epidermal differentiation by a post-transcriptional mechanism. TINCR is required for high mRNA abundance of key differentiation genes, many of which are mutated in human skin diseases, including FLG, LOR, ALOXE3, ALOX12B, ABCA12, CASP14 and ELOVL3. TINCR-deficient epidermis lacked terminal differentiation ultrastructure, including keratohyalin granules and intact lamellar bodies. Genome-scale RNA interactome analysis revealed that TINCR interacts with a suite of differentiation mRNAs. TINCR-mRNA interaction occurs through a 25 nucleotide “TINCR box” motif which is strongly enriched in interacting mRNAs \and required for TINCR binding. A high-throughput screen to analyze TINCR binding capacity to ~9,400 human recombinant proteins revealed direct binding of TINCR RNA to the Staufen1 (STAU1) protein. STAU1-deficient tissue recapitulated the impaired differentiation seen with TINCR depletion. Loss of UPF1 and UPF2, both of which are required for STAU1-mediated RNA decay (SMD), however, lacked differentiation impacts. Instead, the TINCR/STAU1 complex seems to mediate stabilization of differentiation mRNAs, such as KRT80. These data identify TINCR as a key lncRNA required for somatic tissue differentiation, which occurs through inducible lncRNA binding to differentiation mRNAs to ensure their expression. Gene expression analysis: To establish a gene expression signature for regenerated human epidermis depleted of TINCR, as well as STAU1, total RNA was isolated in biologic duplicate from organotypic cultures of cells with a non-targeting siRNA, or an siRNA to the gene of interest. This RNA was processed and then hybridized to Affymetrix HG-U133 2.0 Plus arrays.
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Project description:Several of the thousands of human long non-coding RNAs (lncRNAs) have been functionally characterized; however, potential roles for lncRNAs in somatic tissue differentiation remain poorly understood. Here we show that a 3.7kb lncRNA, terminal differentiation-induced ncRNA (TINCR), controls human epidermal differentiation by a post-transcriptional mechanism. TINCR is required for high mRNA abundance of key differentiation genes, many of which are mutated in human skin diseases, including FLG, LOR, ALOXE3, ALOX12B, ABCA12, CASP14 and ELOVL3. TINCR-deficient epidermis lacked terminal differentiation ultrastructure, including keratohyalin granules and intact lamellar bodies. Genome-scale RNA interactome analysis revealed that TINCR interacts with a suite of differentiation mRNAs. TINCR-mRNA interaction occurs through a 25 nucleotide “TINCR box” motif which is strongly enriched in interacting mRNAs and required for TINCR binding. A high-throughput screen to analyze TINCR binding capacity to ~9,400 human recombinant proteins revealed direct binding of TINCR RNA to the Staufen1 (STAU1) protein. STAU1-deficient tissue recapitulated the impaired differentiation seen with TINCR depletion. Loss of UPF1 and UPF2, both of which are required for STAU1-mediated RNA decay (SMD), however, lacked differentiation impacts. Instead, the TINCR/STAU1 complex seems to mediate stabilization of differentiation mRNAs, such as KRT80. These data identify TINCR as a key lncRNA required for somatic tissue differentiation, which occurs through inducible lncRNA binding to differentiation mRNAs to ensure their expression.
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Project description:Several of the thousands of human long non-coding RNAs (lncRNAs) have been functionally characterized; however, potential roles for lncRNAs in somatic tissue differentiation remain poorly understood. Here we show that a 3.7kb lncRNA, terminal differentiation-induced ncRNA (TINCR), controls human epidermal differentiation by a post-transcriptional mechanism. TINCR is required for high mRNA abundance of key differentiation genes, many of which are mutated in human skin diseases, including FLG, LOR, ALOXE3, ALOX12B, ABCA12, CASP14 and ELOVL3. TINCR-deficient epidermis lacked terminal differentiation ultrastructure, including keratohyalin granules and intact lamellar bodies. Genome-scale RNA interactome analysis revealed that TINCR interacts with a suite of differentiation mRNAs. TINCR-mRNA interaction occurs through a 25 nucleotide “TINCR box” motif which is strongly enriched in interacting mRNAs \and required for TINCR binding. A high-throughput screen to analyze TINCR binding capacity to ~9,400 human recombinant proteins revealed direct binding of TINCR RNA to the Staufen1 (STAU1) protein. STAU1-deficient tissue recapitulated the impaired differentiation seen with TINCR depletion. Loss of UPF1 and UPF2, both of which are required for STAU1-mediated RNA decay (SMD), however, lacked differentiation impacts. Instead, the TINCR/STAU1 complex seems to mediate stabilization of differentiation mRNAs, such as KRT80. These data identify TINCR as a key lncRNA required for somatic tissue differentiation, which occurs through inducible lncRNA binding to differentiation mRNAs to ensure their expression.
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