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Mycobacterium tuberculosis ESX-3 conditional mutant expression

ABSTRACT: Transcriptional profile of esx-3 conditional mutant strain (TB79) vs its parental strain (TB38) grown in 7H9 in presence of 100ng/ml Atc for 48h

ORGANISM(S): Mycobacterium tuberculosis

PROVIDER: GSE47834 | GEO | 2013/06/12

SECONDARY ACCESSION(S): PRJNA208056

REPOSITORIES: GEO

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Mycobacterium tuberculosis ESX-3 conditional mutant expression

Project description:Transcriptional profile of esx-3 conditional mutant strain (TB79) vs its parental strain (TB38) grown in 7H9 in presence of 100ng/ml Atc for 48h One experimental condition. 2 independent biological replicates. One replicate per array.

2013-06-12 | E-GEOD-47834 | biostudies-arrayexpress

Mycobacterium tuberculosis: Cas9 Induced Vs uninduced cultures [Day 7]

Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv::pTetInt-dcas9 comparing 100ng/ml ATc treated cells with Atc-untreated cells after 7 days of treatment with shaking at 200rpm at 37°C.

2014-12-13 | GSE64134 | GEO

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Project description:Transcriptional profiling of Mycobacterium tuberculosis H37Rv::pTetInt-dcas9 comparing 100ng/ml ATc treated cells with Atc-untreated cells after 4 days of treatment with shaking at 200rpm at 37°C.

2014-12-13 | GSE64133 | GEO

Mycobacterium tuberculosis: DNA gyrase depleted Vs control

Project description:Transcriptional profiling of gyr(-) strain of Mycobacterium tuberculosis H37Ra comparing 20ng/ml ATc treated cells with ATc-untreated cells after 4 days of treatment with shaking at 200rpm at 37°C.

2019-03-07 | GSE120139 | GEO

Comparison of gene expression in M. tuberculosis TrxB2-TetON-tetO-WT mutant treated or not with atc

Project description:M. tuberculosis thioredoxin reductase (TrxB2) is essential for Mtb physiology and pathogenesis. To gain insight into its biological functions, we generated the TrxB2-TetON-tetO mutants, in which TrxB2 is partially depleted in the absence of atc without impairing bacterial viability. We grew TrxB2-TetON-tetO-WT in 7H9 medium with 400 ng/ml atc, until the OD reached 0.5~0.6. Then Mtb was washed with 7H9 medium 3 times and suspended in 7H9 medium with or without atc. Then samples were taken 24, 48, 72 and 120 hrs later.

2016-05-12 | E-GEOD-72328 | biostudies-arrayexpress

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Project description:Mycobacterium tuberculosis (MTB) infects and replicates in lung mononuclear phagocytes (MNPs) with astounding ability to evade elimination. A virulence determinant that contributes to MTB’s ability to survive within MNPs is ESX-1, a type VII secretion system. However, how MTB virulence factors influence mononuclear cell recruitment and/or differentiation remains unknown. Here, using single-cell RNA sequencing, we studied the role of ESX-1 in MNP heterogenicity and response in mice and murine bone marrow-derived macrophages. We found that ESX-1 is required for MTB to recruit diverse MNP subsets with high MTB burden. Further, MTB induces an anti-inflammatory signature that may lead to more permissive MNPs. Spatial transcriptomics revealed an upregulation of anti-inflammatory signals in MTB lesions, where monocyte-derived macrophages concentrate near MTB-infected cells. Together, our findings suggest that MTB ESX-1 mediates the recruitment and differentiation of anti-inflammatory MNPs, which MTB can infect and manipulate for survival.

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Basal in vitro transcriptomes of Mycobacterium tuberculosis complex (MTC) clinical isolates

Project description:This study uses microarray analyses to examine baseline gene expression profiles for Mycobacterium tuberculosis complex clinical isolates relative to reference strain CDC1551 during log phase growth in vitro in 7H9 broth. For this in vitro analyses, log-phase mycobacteria in starter cultures grown to mid-log from frozen stocks were inoculated into 7H9-OADC medium in 25-cm2 vented flasks at an OD of ~0.05 and grown without shaking for ~1 week to an OD of ~0.5-0.6.

2010-07-09 | GSE21111 | GEO

The carbonic anhydrase inhibitor ethoxzolamide inhibits the Mycobacterium tuberculosis PhoPR regulon and Esx-1 secretion and attenuates virulence

Project description:The purpose of this study was to examine how ethoxzolamide modulates gene M. tuberculosis gene expression at acidic pH. We observed that ethoxzolamide downregulates genes of the PhoPR regulon. Mtb strain CDC1551 was grown at 37C in T-25 vented, standing tissue culture flasks in 8 ml of buffered 7H9 medium seeded an initial OD of 0.2. Three conditions were examined with two biological replicates: 1) DMSO treated, pH 7.0, 2) DMSO treated, pH 5.7, 3) 40 µM ethoxzolamide treated, pH 5.7. The CDC1551(phoP::Tn) mutant was grown in a similar manner and treated with DMSO at pH 7.0 and 5.7. Following six days incubation, total bacterial RNA was extracted and analyzed as previously described.

2015-05-20 | E-GEOD-63917 | biostudies-arrayexpress

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