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ABSTRACT: AerA, a key virulence factors of Aeromonas veronii in colonizing and injuring fish intestines

PROVIDER: PRJNA1019898 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26148943_1.fastq.gz	Fastqsanger.gz
	SRR26148943_2.fastq.gz	Fastqsanger.gz
	SRR26148944_1.fastq.gz	Fastqsanger.gz
	SRR26148944_2.fastq.gz	Fastqsanger.gz
	SRR26148945_1.fastq.gz	Fastqsanger.gz

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Project description:AerA, a key virulence factors of Aeromonas veronii in colonizing and injuring fish intestines

| PRJNA1019657 | ENA

Project description:AerA, a key virulence factors of Aeromonas veronii in colonizing and injuring fish intestines

| PRJNA1019634 | ENA

Project description:virulence factors in Aeromonas veronii

| PRJEB39811 | ENA

Identifying the target genes of the arginine transcription factor ArgR

Project description:To elucidate the target genes of ArgR in Aeromonas veronii, we engineered an Aeromonas veronii strain that expresses the ArgR protein fused to a 3× FLAG tag, and FLAG antibodies were employed for the immunoprecipitation of DNA-protein complexes.

2024-09-15 | GSE277129 | GEO

Emerging Aeromonas enteric infections: their association with inflammatory bowel disease and novel pathogenic mechanisms

Project description:The intestinal epithelial gene responses to Aeromonas veronii infection and the pathogenic mechanisms were investigated by comparative differential expression analysis

2023-07-28 | GSE222117 | GEO

Human macrophage response to the emerging enteric pathogen Aeromonas veronii: inflammation, apoptosis, and downregulation of histones

Project description:The macrophage cell (THP-1 derived macrophages) gene responses to Aeromonas veronii and Escherichia coli were investigated by comparative differential expression analysis

2024-12-05 | GSE273835 | GEO

Single-cell transcriptome analysis reveals a cellular immune response in freshwater dark sleeper (Odontobutis potamophila) after infection with Aeromonas veronii

Project description:The bacterium Aeromonas veronii is a co-pathogenic species that can negatively impact the health of both humans and aquatic animals. In this study, we used single-cell transcriptome analysis (scRNA-seq) to investigate the effects of infection with A. veronii on head kidney cells and the regulation of gene expression in the dark sleeper (Odontobutis potamophila). scRNA-seq was used to assess the effects of infection with A. veronii in O. potamophila B cells, endothelial cells, macrophages, and granulocytes, and differential enrichment analysis of gene expression in B cells and granulocytes was performed. The analyses revealed a significant increase in neutrophils and decrease in eosinophils in granulocytes infected with A. veronii. Activation of neutrophils enhanced ribosome biogenesis by up-regulating the expression of rps12 and rpl12 to fight against invading pathogens. Crucial pro-inflammatory mediators il1b, ighv1-4, and the major histocompatibility class II genes mhc2a and mhc2dab, which are involved in virulence processes, were up-regulated, suggesting that A. veronii activates an immune response that presents antigens and activates immunoglobulin receptors in B cells. These cellular immune responses triggered by infection with A. veronii enriched the available scRNA-seq data for teleosts, and these results are important for understanding the evolution of cellular immune defense and functional differentiation of head kidney cells.

2023-05-16 | GSE229275 | GEO

Project description:Aeromonas veronii

| PRJNA560312 | ENA

Aeromonas caviae infection, 24 hours

Project description:Aeromonas caviae has been associated with human gastrointestinal disease. Strains of this species typically lack virulence factors (VFs) such as enterotoxins and hemolysins that are produced by other human pathogens of the Aeromonas genus. Microarray profiling of murine small intestinal extracts, 24 hours after oral infection with an A. caviae strain, provides evidence of a Th1 type immune response. A large number of gamma-interferon (γ-IFN) induced genes are up-regulated as well as several tumor necrosis factor-alpha (TNF-α) transcripts. A. caviae has always been considered an opportunistic pathogen because it lacks obvious virulence factors. This current effort suggests A. caviae colonizes murine intestinal tract and causes what has been described by others as a dysregulatory cytokine response leading to an irritable bowel-like syndrome. This response would explain why a number of diarrheal waterborne outbreaks have been attributed to A. caviae even though it lacks obvious enteropathogenic properties. Keywords: Aeromonas caviae, infection, disease mechanism, TH1 resposne

2007-01-20 | GSE6765 | GEO

Murine host cell response to Aeromonas infection

Project description:Aims: To assess the virulence of multiple Aeromonas spp. using two models, a neonatal mouse assay and a mouse intestinal cell culture. Methods and Results: Transcriptional responses to both infection models were evaluated using microarrays. After artificial infection with a variety of Aeromonas spp., mRNA extracts from the two models were processed and hydridized to murine microarrays to determine host gene response. Definition of virulence was determined based on host mRNA production in murine neonatal intestinal tissue and mortality of infected animals. Infections of mouse intestinal cell cultures were then performed to determine whether this simpler model system's mRNA responses correlated to neonatal results and therefore be predictive of virulence of Aeromonas spp. Virulent aeromonads up-regulated transcripts in both models including multiple host defense gene products (chemokines, regulation of transcription and apoptosis, cell signaling). Avirulent species exhibited little or no host response in neonates. Mortality results correlated well with both bacterial dose and average fold change of up-regulated transcripts in the neonatal mice. Conclusions: Cell culture results were less discriminating but showed promise as potentially being able to be predictive of virulence. Jun oncogene up-regulation in murine cell culture is potentially predictive of Aeromonas virulence. Significance and Impact of the Study: Having the ability to determine virulence of waterborne pathogens quickly would potentially assist public health officials to rapidly assess exposure risks. Keywords: Aeromonas; Virulence; Gene expression; Host response

2006-10-21 | GSE6065 | GEO

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