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MiR-145 antagonist effect in house dust mite model of asthma

ABSTRACT: MiR-145 antagonist effect in house dust mite model of asthma

PROVIDER: PRJNA522698 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8581510_1.fastq.gz	Fastqsanger.gz
	SRR8581510_2.fastq.gz	Fastqsanger.gz
	SRR8581520_1.fastq.gz	Fastqsanger.gz
	SRR8581520_2.fastq.gz	Fastqsanger.gz
	SRR8581530_1.fastq.gz	Fastqsanger.gz

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MiR-145 antagonist effect in house dust mite model of asthma

Project description:Purpose: Identify whole lung gene expression patterns modified by nanoparticle delivery of an antisense LNA/DNA oligonucleotide targeting mmu-miR145a-5p and nontargeting oligonucleotides Methods: Lung gene expression profiles of 10 week old BALB/c female mice were generated by polyA RNA-seq with Illumina HiSeq v4. Sequence reads that passed quality filters after timming were analyzed at the gene level with RNA STAR, featureCounts and Deseq2 . qRT–PCR validation was performed using TaqMan and SYBR Green methods. Results: 10-15 million sequence reads per sample were mapped to the mouse genome (build mm10). Pathway analysis of differentially expressed genes identified upregulation of gene sets for human asthma, mouse lung allergic inflammation, Muc5ac regulated genes and smooth muscle genes after allergic sensitization. Gene level exppression in each asthma-related pathway was reduced by the miR-145 antagonist. The miR-145 antagonist and several nontargeting oligos also upregulated interferon signaling pathways suggesting a general antiinflammatory effect of LNA/DNA oligos in the lung. Conclusions: Lung-directed delivery of LNA/DNA oligonucleotides with cationic lipid nanoparticles is an efffective means to prevent inflammatory gene expression in a house dust mite model of asthma

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Project description:Purpose: Identify whole lung gene expression patterns in a house dust mite model of mild/moderate asthma Methods: Lung gene expression profiles of 10 week old BALB/c female mice were generated by ribosome-depleted, 150 nt, paired-end, stranded RNA-seq with Illumina HiSeq v4. Sequence reads that passed quality filters after trimming were analyzed with Sailfish-cir to identify linear RNAs and circular RNAs. Differential expression of linear RNAs was assessed with Deseq2 . QRT–PCR validation was performed using TaqMan and SYBR Green methods. Results: 100 million sequence reads per sample were mapped to the mouse genome (build mm10) using Sailfish-cir to identify linear and circular RNA transcripts. Pathway analysis of differentially expressed genes identified upregulation of gene sets for human asthma, mouse lung allergic inflammation, Muc5ac regulated genes and smooth muscle genes after allergic sensitization. Gene level exppression in each asthma-related pathway was reduced by the miR-145 antagonist. The miR-145 antagonist and several nontargeting oligos also upregulated interferon signaling pathways suggesting a general antiinflammatory effect of LNA/DNA oligos in the lung. Conclusions: Lung-directed delivery of LNA/DNA oligonucleotides with cationic lipid nanoparticles is an efffective means to prevent inflammatory gene expression in a house dust mite model of mild/moderate asthma.

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Transcriptional changes in mouse lungs induced by house dust mite

Project description:We examined the transcriptional changes in mouse lungs induced by house dust mite (HDM), D.f. extract and the isolated RNA was utilized for RNA-seq analysis. Our results demonstrated that HDM strongly triggered an inflammatory response.

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Expression data from lung CD11b+ conventional dendritic cells in the steady-state and following exposure to house dust mite allergens

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