Transcriptomic analysis of Clec12A-deficient BMDCs stimulated with RIG-I agonist
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA553706 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR9666340.fastq.gz | Fastqsanger.gz | |||
| SRR9666350.fastq.gz | Fastqsanger.gz | |||
| SRR9666360.fastq.gz | Fastqsanger.gz | |||
| SRR9666341.fastq.gz | Fastqsanger.gz | |||
| SRR9666351.fastq.gz | Fastqsanger.gz |
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Project description:Innate immune receptors rely on the detection of diverse immunological cues and intensive crosstalk to generate context-dependent responses. The inhibitory C-type lectin receptor Clec12A has been shown to sense dead cells and danger-associated molecule uric acid crystal, and to subsequently limit inflammation. However, whether Clec12A plays additional roles in innate immunity has not yet been determined. Here we demonstrate that the activation of Clec12A enhances the induction of type I interferon (IFN-I) response. Through integrating data from RNA-seq, gene set enrichment analysis, and biochemical studies, we show that Clec12A is required for optimal transcription of interferon-stimulated genes in response to pattern recognition receptors (e.g. RIG-I) activation.
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Project description:The RIG-I like receptor pathway is stimulated during RNA virus infection by interaction between cytosolic RIG-I and viral RNA structures that contain short hairpin dsRNA and 5M-bM-^@M-^Y triphosphate (5M-bM-^@M-^Yppp) terminal structure. In the present study, an RNA agonist of RIG-I was synthesized in vitro and shown to stimulate RIG-I-dependent antiviral responses at concentrations in the picomolar range. In human lung epithelial A549 cells, 5M-bM-^@M-^YpppRNA specifically stimulated multiple parameters of the innate antiviral response, including IRF3, IRF7 and STAT1 activation, andinduction of inflammatory and interferon stimulated genes - hallmarks of a fully functional antiviral response. Evaluation of the magnitude and duration of gene expression by transcriptional profiling identified a robust, sustained and diversified antiviral and inflammatory response characterized by enhanced pathogen recognition and interferon (IFN)signaling. Bioinformatics analysis further identified a transcriptional signature uniquely induced by 5M-bM-^@M-^YpppRNA, and not by IFNM-NM-1-2bthat included a constellation of IRF7 and NF-kB target genes capable of mobilizing multiple arms of the innate and adaptive immune response. Treatment of primary PBMCs or lung epithelial A549 cells with 5M-bM-^@M-^YpppRNA provided significant protection against a spectrum of RNA and DNA viruses. In C57Bl/6 mice, intravenous administration of 5M-bM-^@M-^YpppRNA protected animals from a lethal challenge with H1N1 Influenza, reduced virus titers in mouse lungs and protected animals from virus-induced pneumonia. Strikingly, the RIG-I-specific transcriptional response afforded partial protection from influenza challenge, even in the absence of type I interferon signaling. This systems approach providestranscriptional, biochemical, and in vivo analysis of the antiviral efficacy of 5M-bM-^@M-^YpppRNA and highlights the therapeutic potential associated with the use of RIG-I agonists as broad spectrum antiviral agents. Kinetic analysis of A549 cells treated with 5'pppRNA and analyzed at 1h, 2h, 4h, 6h, 8h, 12h, 24h or 48h.
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Project description:The RIG-I like receptor pathway is stimulated during RNA virus infection by interaction between cytosolic RIG-I and viral RNA structures that contain short hairpin dsRNA and 5M-bM-^@M-^Y triphosphate (5M-bM-^@M-^Yppp) terminal structure. In the present study, an RNA agonist of RIG-I was synthesized in vitro and shown to stimulate RIG-I-dependent antiviral responses at concentrations in the picomolar range. In human lung epithelial A549 cells, 5M-bM-^@M-^YpppRNA specifically stimulated multiple parameters of the innate antiviral response, including IRF3, IRF7 and STAT1 activation, andinduction of inflammatory and interferon stimulated genes - hallmarks of a fully functional antiviral response. Evaluation of the magnitude and duration of gene expression by transcriptional profiling identified a robust, sustained and diversified antiviral and inflammatory response characterized by enhanced pathogen recognition and interferon (IFN)signaling. Bioinformatics analysis further identified a transcriptional signature uniquely induced by 5M-bM-^@M-^YpppRNA, and not by IFNM-NM-1-2bthat included a constellation of IRF7 and NF-kB target genes capable of mobilizing multiple arms of the innate and adaptive immune response. Treatment of primary PBMCs or lung epithelial A549 cells with 5M-bM-^@M-^YpppRNA provided significant protection against a spectrum of RNA and DNA viruses. In C57Bl/6 mice, intravenous administration of 5M-bM-^@M-^YpppRNA protected animals from a lethal challenge with H1N1 Influenza, reduced virus titers in mouse lungs and protected animals from virus-induced pneumonia. Strikingly, the RIG-I-specific transcriptional response afforded partial protection from influenza challenge, even in the absence of type I interferon signaling. This systems approach providestranscriptional, biochemical, and in vivo analysis of the antiviral efficacy of 5M-bM-^@M-^YpppRNA and highlights the therapeutic potential associated with the use of RIG-I agonists as broad spectrum antiviral agents. A549 cells were either non-treated, treated with RNAiMax only, transfected with 5'pppRNA, or treated with IFNa-2b and analysed at 6h or 24h.
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Project description:The RIG-I like receptor pathway is stimulated during RNA virus infection by interaction between cytosolic RIG-I and viral RNA structures that contain short hairpin dsRNA and 5’ triphosphate (5’ppp) terminal structure. In the present study, an RNA agonist of RIG-I was synthesized in vitro and shown to stimulate RIG-I-dependent antiviral responses at concentrations in the picomolar range. In human lung epithelial A549 cells, 5’pppRNA specifically stimulated multiple parameters of the innate antiviral response, including IRF3, IRF7 and STAT1 activation, andinduction of inflammatory and interferon stimulated genes - hallmarks of a fully functional antiviral response. Evaluation of the magnitude and duration of gene expression by transcriptional profiling identified a robust, sustained and diversified antiviral and inflammatory response characterized by enhanced pathogen recognition and interferon (IFN)signaling. Bioinformatics analysis further identified a transcriptional signature uniquely induced by 5’pppRNA, and not by IFNα-2bthat included a constellation of IRF7 and NF-kB target genes capable of mobilizing multiple arms of the innate and adaptive immune response. Treatment of primary PBMCs or lung epithelial A549 cells with 5’pppRNA provided significant protection against a spectrum of RNA and DNA viruses. In C57Bl/6 mice, intravenous administration of 5’pppRNA protected animals from a lethal challenge with H1N1 Influenza, reduced virus titers in mouse lungs and protected animals from virus-induced pneumonia. Strikingly, the RIG-I-specific transcriptional response afforded partial protection from influenza challenge, even in the absence of type I interferon signaling. This systems approach providestranscriptional, biochemical, and in vivo analysis of the antiviral efficacy of 5’pppRNA and highlights the therapeutic potential associated with the use of RIG-I agonists as broad spectrum antiviral agents.
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Project description:The RIG-I like receptor pathway is stimulated during RNA virus infection by interaction between cytosolic RIG-I and viral RNA structures that contain short hairpin dsRNA and 5’ triphosphate (5’ppp) terminal structure. In the present study, an RNA agonist of RIG-I was synthesized in vitro and shown to stimulate RIG-I-dependent antiviral responses at concentrations in the picomolar range. In human lung epithelial A549 cells, 5’pppRNA specifically stimulated multiple parameters of the innate antiviral response, including IRF3, IRF7 and STAT1 activation, andinduction of inflammatory and interferon stimulated genes - hallmarks of a fully functional antiviral response. Evaluation of the magnitude and duration of gene expression by transcriptional profiling identified a robust, sustained and diversified antiviral and inflammatory response characterized by enhanced pathogen recognition and interferon (IFN)signaling. Bioinformatics analysis further identified a transcriptional signature uniquely induced by 5’pppRNA, and not by IFNα-2bthat included a constellation of IRF7 and NF-kB target genes capable of mobilizing multiple arms of the innate and adaptive immune response. Treatment of primary PBMCs or lung epithelial A549 cells with 5’pppRNA provided significant protection against a spectrum of RNA and DNA viruses. In C57Bl/6 mice, intravenous administration of 5’pppRNA protected animals from a lethal challenge with H1N1 Influenza, reduced virus titers in mouse lungs and protected animals from virus-induced pneumonia. Strikingly, the RIG-I-specific transcriptional response afforded partial protection from influenza challenge, even in the absence of type I interferon signaling. This systems approach providestranscriptional, biochemical, and in vivo analysis of the antiviral efficacy of 5’pppRNA and highlights the therapeutic potential associated with the use of RIG-I agonists as broad spectrum antiviral agents.
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