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GSE70200
Homo sapiens
5 Downloadable Samples
Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
Understanding the mechanisms of host macrophage responses to Mycobacterium tuberculosis (M.tb.) is essential for uncovering potential avenues of intervention to boost host resistance to infection. Macrophage transcriptome profiling revealed M.tb. infection strongly induced expression of several enzymes controlling tryptophan (Trp) catabolism. This included indole 2,3-dioxygenase 1 (IDO1) and tryptophan 2,3-dioxygenase (TDO2), which catalyze the rate-limiting step in the kynurenine pathway, producing ligands for the aryl hydrocarbon receptor (AHR). The AHR and heterodimeric partners AHR nuclear translocator (ARNT) and RELB are robustly expressed, and AHR and RELB levels further increased during infection. Infection enhanced AHR/ARNT and AHR/RELB DNA binding, and stimulated expression of AHR target genes, including that encoding the inflammatory cytokine IL1beta. AHR target gene expression was further enhanced by exogenous kynurenine, and exogenous Trp, kynurenine or synthetic agonist indirubin reduced mycobacterial viability. Comparative expression profiling revealed that AHR ablation diminished expression of numerous genes implicated in innate immune responses, including several cytokines. Notably, AHR depletion reduced expression of IL23A and IL12B transcripts, which encode subunits of interleukin 23 (IL23), a macrophage cytokine that stimulates production of IL22 by innate lymphoid cells. The AHR directly induced IL23A transcription in human and mouse macrophages through near-upstream enhancer regions. Taken together, these findings show that AHR signaling is strongly engaged in Mtb-infected macrophages, and has widespread effects on innate immune responses. Moreover, they reveal a cascade of AHR-driven innate immune signaling, as IL1B (IL-1) and IL23 stimulate T cell subsets producing IL22, another direct target of AHR transactivation.
Publication Title
Engagement of the Aryl Hydrocarbon Receptor in Mycobacterium tuberculosis-Infected Macrophages Has Pleiotropic Effects on Innate Immune Signaling.
Sample Metadata Fields
Cell line
View Samples- Triticum aestivum
- 111 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 30 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from near isogenic spring wheat lines carrying or not the FHB resistance QTL 2DL, after inoculation with water (H2O) or Fg; two inoculation methods were also compared, point and spray inoculation.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 19 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from near isogenic spring wheat lines carrying different combinaison of the FHB resistance QTLs 2DL, 3BS and 5A, after inoculation with water (H2O) or Fg; the point inoculation method was used.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 16 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the very susceptible spring wheat cultivar Roblin inoculated with either water (H2O), a Fg strain (GZ3639) producing the mycotoxin deoxynivalenol (+DON), or a GZ3639-derived Fg strain which has been inactivated at the Tri5 locus (-DON).
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 12 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the very susceptible spring wheat cultivar Roblin inoculated with water (H2O) or Fg.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 12 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant spring wheat cultivar NuyBay inoculated with water (H2O) or Fg.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 12 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant winter wheat cultivar Dream inoculated with water (H2O) or Fg.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 10 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant spring wheat cultivar Wuhan1 inoculated with water (H2O) or Fg.
Publication Title
Identification of biomarker genes for resistance to a pathogen by a novel method for meta-analysis of single-channel microarray datasets.
Sample Metadata Fields
Specimen part
View Samples- Triticum aestivum
- 32 Downloadable Samples
- Affymetrix Wheat Genome Array (wheat)
Description
Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes) and developing seeds. This study compare the gene expression profile in wheat spikelets (spk 2) inoculated with either water (mock treatment) or a pathogenic strain of Fusarium graminearum (WT); spikelets 2 were inoculated 24 hrs after a neighbour spikelet (spk 0) was treated with either water or F. graminerum mutant strain Tri6 or NoxAB. Spikelets 2 were sampled 8 and 24 hrs after the second treatment.
Publication Title
Components of priming-induced resistance to Fusarium head blight in wheat revealed by two distinct mutants of Fusarium graminearum.
Sample Metadata Fields
Specimen part
View Samples