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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (small RNA-seq)

ABSTRACT: Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (small RNA-seq)

PROVIDER: PRJNA879092 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21523200.fastq.gz	Fastqsanger.gz
	SRR21523201.fastq.gz	Fastqsanger.gz
	SRR21523196.fastq.gz	Fastqsanger.gz
	SRR21523197.fastq.gz	Fastqsanger.gz
	SRR21523198.fastq.gz	Fastqsanger.gz

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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis

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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (miRNA microarray)

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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (miRNA microarray)

Project description:Background: Combinatorial gene regulation by multiple microRNAs (miRNAs) is widespread, and closely spaced target sites often act cooperatively to achieve stronger repression (“neighborhood” miRNA cotargeting). While miRNA cotarget sites are suggested to be more conserved and implicated in developmental control, the pathological significance of miRNA cotargeting remains elusive. Results: Here, we report pathogenic impacts of combinatorial miRNA regulation on inflammation in systemic lupus erythematosus (SLE). In the SLE mouse model, we identified downregulation of two miRNAs, miR-128 and miR-148a, by TLR7 stimulation in plasmacytoid dendritic cells. Functional analyses using human cell lines demonstrated that miR-128 and miR-148a additively target KLF4 via extensively overlapping target sites (“seed overlap” miRNA cotargeting) and suppress the inflammatory responses. At the transcriptome level, “seed overlap” miRNA cotargeting increases susceptibility to downregulation by two miRNAs, consistent with additive but not cooperative recruitment of two miRNAs. Systematic characterization further revealed that extensive “seed overlap” is a prevalent feature among broadly conserved miRNAs. Highly conserved target sites of broadly conserved miRNAs are largely divided into two classes—those conserved among eutherian mammals and from human to Coelacanth, and the latter, including KLF4-cotargeting sites, has a stronger association with both “seed overlap” and “neighborhood” miRNA cotargeting. Furthermore, a deeply conserved miRNA target class has a higher probability of haplo-insufficient genes. Conclusions: Our study collectively suggests the complexity of distinct modes of miRNA cotargeting and importance of their perturbations in human diseases.

2022-10-14 | GSE184337 | GEO

Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (RNA-seq)

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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis (small RNA-seq)

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Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis

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

2022-10-14 | GSE184338 | GEO

Systematic characterization of seed overlap microRNA cotargeting associated with lupus pathogenesis.

Project description:BackgroundCombinatorial gene regulation by multiple microRNAs (miRNAs) is widespread and closely spaced target sites often act cooperatively to achieve stronger repression ("neighborhood" miRNA cotargeting). While miRNA cotarget sites are suggested to be more conserved and implicated in developmental control, the pathological significance of miRNA cotargeting remains elusive.ResultsHere, we report the pathogenic impacts of combinatorial miRNA regulation on inflammation in systemic lupus erythematosus (SLE). In the SLE mouse model, we identified the downregulation of two miRNAs, miR-128 and miR-148a, by TLR7 stimulation in plasmacytoid dendritic cells. Functional analyses using human cell lines demonstrated that miR-128 and miR-148a additively target KLF4 via extensively overlapping target sites ("seed overlap" miRNA cotargeting) and suppress the inflammatory responses. At the transcriptome level, "seed overlap" miRNA cotargeting increases susceptibility to downregulation by two miRNAs, consistent with additive but not cooperative recruitment of two miRNAs. Systematic characterization further revealed that extensive "seed overlap" is a prevalent feature among broadly conserved miRNAs. Highly conserved target sites of broadly conserved miRNAs are largely divided into two classes-those conserved among eutherian mammals and from human to Coelacanth, and the latter, including KLF4-cotargeting sites, has a stronger association with both "seed overlap" and "neighborhood" miRNA cotargeting. Furthermore, a deeply conserved miRNA target class has a higher probability of haplo-insufficient genes.ConclusionsOur study collectively suggests the complexity of distinct modes of miRNA cotargeting and the importance of their perturbations in human diseases.

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