Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Characterization of the immune response to Mycobacterium marinum infection in zebrafish [mutant 463]

ABSTRACT: Mycobacterium marinum infection in zebrafish (Danio rerio) has been widely used to study human tuberculosis because the bacteria causing these two diseases are close relatives. We studied the zebrafish immune response to M. marinum infection through a whole-genome level transcriptome analysis. In addition, we carried out a medium-scale forward genetic screen to identify genes underlying defense mechanisms against M. marinum infection in zebrafish. Our aim was to gain more information about the genetic mechanisms important in the immune defense against human tuberculosis. In this screen, we identified a mutant zebrafish line with impaired resistance to a low-dose M. marinum infection. In this line, the transcriptome analysis at 14 days post infection revealed decreased expression of a gene homologous to human UNC119 which has been shown to have a role in T cell activation.

ORGANISM(S): Danio rerio

PROVIDER: GSE118350 | GEO | 2019/10/16

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Characterization of the immune response to Mycobacterium marinum infection in zebrafish

Project description:Mycobacterium marinum infection in zebrafish (Danio rerio) has been widely used to study human tuberculosis because the bacteria causing these two diseases are close relatives. We studied the zebrafish immune response to M. marinum infection through a whole-genome level transcriptome analysis. As expected based on the literature, our results showed the induction of genes coding proteins associated to immune signaling, cell migration and acute phase response indicating that the immune response to M. marinum infection in zebrafish is similar than the response to tuberculosis causing Mycobacterium tuberculosis in humans.

2019-10-16 | GSE118288 | GEO

A microarray to characterize the immune response of adult zebrafish to a low dose Mycobacterium marinum infection

Project description:Zebrafish Mycobacterium marinum infection has been widely used to model human tuberculosis because these two diseases share common features, e.g. latency, granuloma formation and reactivation. Here we infected adult zebrafish with a low dose of M. marinum, which usually leads to a chronic infection. At 14 days post infection we performed microarray analysis to characterize the immune response against this infection. Analysis was done using total RNA extracted from the abdominal organs of zebrafish. Our aim was to find novel genes underlying host defense mechanisms against M. marinum infection in zebrafish, and thus to produce novel information that is valuable when developing new treatments for human tuberculosis.

2019-02-01 | GSE120552 | GEO

Transcription profiling of zebrafish at the late stage of chronic tuberculosis due to Mycobacterium marinum infection

Project description:Transcriptome profiling of adult zebrafish at the late stage of chronic tuberculosis due to Mycobacterium marinum infection.

2005-08-17 | E-MEXP-405 | biostudies-arrayexpress

The human pathogen Mycobacterium tuberculosis and the fish pathogen Mycobacterium marinum trigger the same core set of late immune response genes in zebrafish larvae

Project description:Zebrafish is a natural host of various Mycobacterium species and a surrogate model organism for tuberculosis research. Mycobacterium marinum (M. marinum) is evolutionarily most closely related to M. tuberculosis and shares the majority of virulence genes. Although zebrafish is not a natural host of the human pathogen, we have previously demonstrated successful robotic infection of zebrafish embryos with M. tuberculosis and performed drug treatment of the infected larvae. In the present study we examined for how long M. tuberculosis can be propagated in zebrafish larvae and tested a time series of infected larvae to study the transcriptional response via Illumina RNAseq. Granuloma-like structures carrying fluorescently labeled M. tuberculosis could be detected up to 9 days post infection. The continued presence of viable M. tuberculosis in the zebrafish larvae was further confirmed using the molecular bacterial load assay. The infected larvae showed a clear and specific transcriptional immune response with a high similarity to the response of zebrafish larvae infected with the surrogate species M. marinum. We conclude that M. tuberculosis can be propagated in zebrafish larvae for at least one week after infection and provide further evidence that M. marinum is a good surrogate model for M. tuberculosis.

2024-01-08 | GSE252417 | GEO

Ex vivo proteomics of Mycobacterium marinum

Project description:Proteins expressed and exported out of the mycobacterial biofilm cells into granulomatous environment during infection were identified by LC-MS/MS. To this end, adult 5- to 10-month-old female AB wild-type zebrafish (Danio rerio) were infected with 4-day old M. marinum ATCC927 (carrying the pTEC27 plasmid expressing the tdTomato fluorescent protein) cells. After 8 weeks post infection, ten zebrafish were euthanized, and red fluorescent mycobacterial granulomas were carefully dissected from the zebrafish ovaries. Ten granulomas were collected per tube, frozen on dry ice and stored at -80 °C until preparation for proteomics. Altogether, ten replicate samples, each with ten mycobacterial granulomas, were subjected to protein extraction and LC-MS/MS identification.

2023-03-06 | PXD039416 | Pride

WhiB4 is required for the reactivation of latent infection of Mycobacterium marinum in zebrafish II

Project description:Granulomas are the pathological hallmark of tuberculosis (TB). In individuals latently infected with Mycobacterium tuberculosis (M. tb), the bacteria are thought to reside within the granulomas in a nonreplicating dormant state due to the lack of oxygen and nutrients. However, a portion of these individuals will develop active TB and little is known on the bacterial mechanisms/factors involved in this process. In this study, we found that WhiB4, an oxygen sensor and a transcription factor, plays a critical role in disease progression and reactivation of Mycobacterium marinum (M. marinum) infection in zebrafish. We show that the whiB4 mutant of M. marinum caused latent infection in adult zebrafish, which is characterized by the stable bacterial loads, constant number of non-necrotized granulomas in fewer organs, and reduced immune responses compared to zebrafish infected with the wild type bacteria or the complemented strain. The mutant bacteria in zebrafish were also less responsive to antibiotic treatments. Moreover, the whiB4 mutant was defective in resuscitation from hypoxia-induced dormancy and that the DosR regulon was dysregulated in the mutant. Taken together, our results suggest that WhiB4 is a major driver of reactivation from latent infection and that WhiB4 is an attractive target for the development of novel therapeutics, which may help to prevent the reactivation of latent infection thereby reducing the incidences of active TB.

2021-11-22 | GSE189123 | GEO

WhiB4 is required for the reactivation of latent infection of Mycobacterium marinum in zebrafish [ChIP-Seq]

2021-06-16 | GSE178190 | GEO

WhiB4 is required for the reactivation of latent infection of Mycobacterium marinum in zebrafish [zebrafish RNAseq]

2021-06-16 | GSE178186 | GEO

WhiB4 is required for the reactivation of latent infection of Mycobacterium marinum in zebrafish [bacteria RNA seq]

2021-06-16 | GSE178188 | GEO

Zebrafish response to Mycobacterium marinum infection (Compugen series)

Project description:Mycobacteria infect macrophages that aggregate with additional macrophages and lymphocytes to form granulomas. We have used a functional genomics approach to identify immune response genes expressed during granuloma formation in Mycobacterium marinum-infected transparent zebrafish larvae where individual infection steps can be viewed in real time. We assessed RNA expression profiles from zebrafish larvae that were either infected with Mycobacterium marinum or mock-infected. Zebrafish infections were performed at 1 day post-fertilization (dpf), and samples were derived from pools of 6dpf zebrafish larvae. Keywords: host response to infection

2008-01-01 | GSE8846 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data