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Aerosol metagenome

ABSTRACT: aerosol metagenome Raw sequence reads

PROVIDER: PRJNA839856 | ENA |

REPOSITORIES: ENA

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Dataset's files

Source:

			Action	DRS
	SRR19430643_1.fastq.gz	Fastqsanger.gz
	SRR19430643_2.fastq.gz	Fastqsanger.gz
	SRR19430644_1.fastq.gz	Fastqsanger.gz
	SRR19430644_2.fastq.gz	Fastqsanger.gz
	SRR19430645_1.fastq.gz	Fastqsanger.gz

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Aerosol delivery, but not intramuscular injection, of adenovirus-vectored tuberculosis vaccine induces respiratory-mucosal immunity in humans

Project description:Since besides mucosal adaptive immunity, respiratory delivery of AdHu5Ag85A vaccine in experimental animals induced a trained phenotype in airway macrophages, we examined whether aerosol vaccination with AdHu5Ag85A could also alter the immune property of human alveolar macrophages (AM). To this end, we elected to examine the transcriptomics of BALF cells obtained from 5 participants before (wk0) and after (wk8) 1x106PFU AdHu5Ag85A aerosol vaccination. Before RNA isolation, the cells, upon revival from frozen stock, were enriched for AM and cultured with or without stimulation with M.tb lysates and transcriptionally profiled by RNAseq analysis. Principal component analysis (PCA) revealed that unstimulated (US) and stimulated (S) AM populations were separated away from each other. We then identified the differentially expressed genes (DEGs) by comparing wk0- and wk8-stimulated AM with respective unstimulated AM. By this pairwise analysis, we identified 194 and 426 genes uniquely upregulated and downregulated, respectively, in stimulated AM from aerosol vaccinated participants. The uniquely up-regulated genes in stimulated wk8 aerosol AM showed enrichment in a number of biological processes including response to anoxia (OXTR, CTGF), inflammatory response to antigenic stimuli (IL2RA, IL1B, IL20RB), tyrosine phosphorylation of STAT protein (IFNG, F2R, OSM), regulation of IL-10 production (CD83, IRF4, IL20RB, IDO1), response to IL-1 (RIPK2, SRC, IRAK2, IL1R1, XYLT1, RELA) and histone demethylation (KDM6B, KDM5B, KDM1A, KDM7A, JMJD6). In comparison, the uniquely down-regulated genes in wk8 aerosol AM did not appear significantly enriched for any biological processes. These data suggest that aerosol vaccination leads to persisting transcriptional changes in airway-resident alveolar macrophages poised for defense responses.

2022-02-23 | GSE190850 | GEO

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