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ABSTRACT: Protective role of jaranol and 12,13-DiHOME in cardiac remodeling

PROVIDER: PRJNA1150657 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR30358149_1.fastq.gz	Fastqsanger.gz
	SRR30358149_2.fastq.gz	Fastqsanger.gz
	SRR30358150_1.fastq.gz	Fastqsanger.gz
	SRR30358150_2.fastq.gz	Fastqsanger.gz
	SRR30358151_1.fastq.gz	Fastqsanger.gz

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Gut bacterial-derived 12,13-diHOME promotes M1-like inflammatory macrophage polarization and trained immunity targeting interferon responses [h-Mf-ATAC-seq]

Project description:Elevated infant fecal concentrations of bacterial-derived lipid 12,13-diHOME increases risk for atopy and asthma development in childhood, mechanistically how this lipid may contribute to disease susceptibility is unknown. Here we demonstrate macrophages exposed to 12,13-diHOME exhibit inflammatory IL-1highCD206low M1-like polarization, reduce bacterial phagocytic capacity. In co-culture assays, antigens in the presence of 12,13-diHOME further amplifies M1-like frequency, promotes CD20+CD38-IgD-CD27+ memory B cells expansion and IgE production. Epigenetic analyses indicates 12,13-diHOME exposure promotes DNA methylation, chromatin compaction, specifically diminishing access to interferon-stimulated response elements and transcription factor binding sites. In vivo, in murine airway allergic sensitization model, gut bacterial-derived 12,13-diHOME exacerbated both airway allergic inflammation and IL-1, IL-7, one-carbon metabolism and Toll-like receptor signaling. Our data suggests that 12,13-diHOME reprograms macrophage effector function, B-cell interactions and epigenetic modifications promoting phenotypes plausibly play a role in shaping early life microbiome development and innate immune dysfunction related to allergic sensitization in childhood.

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Gut bacterial-derived 12,13-diHOME promotes M1-like inflammatory macrophage polarization and trained immunity targeting interferon responses [m-lung-RNA-seq]

Project description:Elevated infant fecal concentrations of bacterial-derived lipid 12,13-diHOME increases risk for atopy and asthma development in childhood, mechanistically how this lipid may contribute to disease susceptibility is unknown. Here we demonstrate macrophages exposed to 12,13-diHOME exhibit inflammatory IL-1bhighCD206low M1-like polarization, reduce bacterial phagocytic capacity. In co-culture assays, antigens in the presence of 12,13-diHOME further amplifies M1-like frequency, promotes CD20+CD38-IgD-CD27+ memory B cells expansion and IgE production. Epigenetic analyses indicates 12,13-diHOME exposure promotes DNA methylation, chromatin compaction, specifically diminishing access to interferon-stimulated response elements and transcription factor binding sites. In vivo, in murine airway allergic sensitization model, gut bacterial-derived 12,13-diHOME exacerbated both airway allergic inflammation and IL-1, IL-7, one-carbon metabolism and Toll-like receptor signaling. Our data suggests that 12,13-diHOME reprograms macrophage effector function, B-cell interactions and epigenetic modifications promoting phenotypes plausibly play a role in shaping early life microbiome development and innate immune dysfunction related to allergic sensitization in childhood.

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