Homo sapiens
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ABSTRACT:
PROVIDER: PRJNA252698 | ENA |
REPOSITORIES: ENA
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Project description:Transcriptional Profile of Mycobacterium tuberculosis Replicating in Human Type II Alveolar Epithelial A549 cell line
| PRJNA252698 | ENA
Project description:Infection with Mycobacterium tuberculosis (M. tb) is initiated when an aerosol droplet carrying a few bacilli is inhaled into an alveolus. Alveolar epithelial cells (AEC) (type II and type I) are among the first cells encountered by the infecting bacteria and greatly outnumber macrophages in the alveolus. M. tb replicates dramatically (>20,000 fold) in a “non-migrating” compartment in the lung prior to the development of the cell-mediated immune response in aerosol-infected mice (Wolf AJ, 2008). M. tb DNA has been found in type II AEC in autopsied lung tissue of latently infected individuals (Hernandez-Pando R et. al, 2000; Barrios-Payan J et. al 2012), and M. tb-infected AEC in broncho-alveolar lavage (BAL) and in sputum samples from TB patients indicates the infection of these cells in active as well as latent human TB (Eum SY et. al, 2010). M. tb has been shown to infect and replicate in the human type II AEC line, A549, and passaging of M. tb through A549 increases M. tb invasiveness (Bermudez LE et.al, 2002). In this work, we have used DNA microarray analysis to investigate the transcriptome of M. tb replicating in type II AEC (A549) compared to M. tb grown logarithmically in Middlebrook 7H9 broth media in order to identify M. tb adaptations to this intracellular environment as well as M. tb mechanisms/factors contributing to M. tb replication and increased invasiveness in primary infection. The global gene expression of M. tb H37Rv replicating in A549 cells at 72 hr was compared to that of M. tb grown to log phase in Middlebrook 7H9 media.
2015-03-31 | E-GEOD-58466 | biostudies-arrayexpress
Project description:Infection with Mycobacterium tuberculosis (M. tb) is initiated when an aerosol droplet carrying a few bacilli is inhaled into an alveolus. Alveolar epithelial cells (AEC) (type II and type I) are among the first cells encountered by the infecting bacteria and greatly outnumber macrophages in the alveolus. M. tb replicates dramatically (>20,000 fold) in a “non-migrating” compartment in the lung prior to the development of the cell-mediated immune response in aerosol-infected mice (Wolf AJ, 2008). M. tb DNA has been found in type II AEC in autopsied lung tissue of latently infected individuals (Hernandez-Pando R et. al, 2000; Barrios-Payan J et. al 2012), and M. tb-infected AEC in broncho-alveolar lavage (BAL) and in sputum samples from TB patients indicates the infection of these cells in active as well as latent human TB (Eum SY et. al, 2010). M. tb has been shown to infect and replicate in the human type II AEC line, A549, and passaging of M. tb through A549 increases M. tb invasiveness (Bermudez LE et.al, 2002). In this work, we have used DNA microarray analysis to investigate the transcriptome of M. tb replicating in type II AEC (A549) compared to M. tb grown logarithmically in Middlebrook 7H9 broth media in order to identify M. tb adaptations to this intracellular environment as well as M. tb mechanisms/factors contributing to M. tb replication and increased invasiveness in primary infection.
2015-03-31 | GSE58466 | GEO
Project description:We used RNA sequencing to comprehensively map the expression of coding and non-coding RNAs in primary human alveolar epithelial type II cells (AECIIs), alveolar macrophages (AMs), human lung tissue, and the epithelial cell line A549 during infection with IAV strain H3N2 Panama
2022-12-16 | GSE206606 | GEO
Project description:Human alveolar epithelial cell line A549 Transcriptome
| PRJNA270568 | ENA
Project description:Microarray technology was used to monitor the level of expression of 9,300 human genes at different time-points after infection of the type II alveolar A549 human cell line with HRSVs.
2006-07-30 | E-TABM-79 | biostudies-arrayexpress
Project description:Comparison of gene expression profile of the whiB4 mutant strain of Mycobacterium tuberculosis with the wild type Mycobacterium tuberculosis H37RV Mtb WhiB4 mutant mRNA was compared with the mRNA of wtMtb H37RV under aerobic conditons
2012-07-24 | GSE37840 | GEO
Project description:The following describes additional preliminary data to that outlined in Project PXD014022 and specifically describes the 12-hour co-exposure and P. aeruginosa 12 hour exposure preliminary experiments. Aspergillus fumigatus and Pseudomonas aeruginosa are the most prevalent fungal and bacterial pathogens associated with cystic fibrosis-related infections, respectively. P. aeruginosa eventually predominates as the primary pathogen, though it is unknown why this is the case. Label-free quantitative (LFQ) proteomics was employed to characterize the cellular response to co-exposure of A. fumigatus and P. aeruginosa using the type II alveolar epithelial cell line, A549, as a model of the alveolar surface. Proteomic data revealed that P. aeruginosa replication increased exponentially when co-cultured with A. fumigatus. Comparative analysis using LFQ proteomics revealed similarities and distinct differences in the response of A549 cells to A. fumigatus, or P. aeruginosa and sequential exposure to both pathogens. In total, 2264 proteins were identified. Analysis of statistically significant (p<0.05; ±1.5 fold change) differentially abundant (SSDA) proteins, revealed an increase in the relative abundance of proteins associated with biological processes common to all pathogen-exposed groups.
2019-11-11 | PXD014535 | Pride
Project description:We investigated whether in vitro expansion of human alveolar epithelial type II cells is possible. We found that human endogenous human alveolar epithelial type II cells can be cultured and passaged. The culture system enabled retroviral gene transduction into human alveolar epithelial type II cells. We performed RNA sequencing of human alveolar epithelial type II cells transduced with mutant surfactant protein C or control vector.
2019-06-27 | GSE128291 | GEO
Project description:Comparison of rat freshly-isolated alveolar epithelial type I cells, freshly-isolated type II cells, and type II cells cultured for 7 days Keywords = rat, alveolar epithelial type I cells, cultured type II cells Keywords: parallel sample
2004-11-01 | GSE1567 | GEO