Project description:We established chromate transformed cell lines by chronic exposure of normal human bronchial epithelial BEAS-2B cells to low doses of hexavalent chromium followed by anchorage-independent growth. The gene expression profiles were analyzed in the established cell lines. The gene expression profiles from six chromate transformed cell lines were remarkably similar to each other yet differed significantly from that of either control cell line or normal Beas-2B cells. A total of 409 differentially expressed genes were identified in chromate transformed cells compared to control cells.
Project description:We established chromate transformed cell lines by chronic exposure of normal human bronchial epithelial BEAS-2B cells to low doses of hexavalent chromium followed by anchorage-independent growth. The gene expression profiles were analyzed in the established cell lines. The gene expression profiles from six chromate transformed cell lines were remarkably similar to each other yet differed significantly from that of either control cell line or normal Beas-2B cells. A total of 409 differentially expressed genes were identified in chromate transformed cells compared to control cells. We analyzed gene expression profiles from 10 cell lines ( six chromated transformed cells lines, three control cell lines, and parental BEAS-2B cells) using Affymetrix Human Gene 1.0 ST array. No techinical replicates were performed.
Project description:Transcriptional profiling of Arabidopsis thalina seedlings in response to high (140 M-BM-5M) and low (20 M-BM-5M) concentrations of chromate (K2CrO4). Low concentrations of chromate (e.g. 40 M-BM-5M) promoted primary root growth, while high concentrations (e.g. 140 M-BM-5M) repressed growth and increased formation of root hairs, lateral roots and adventitious roots. Three-condition experiment, high (140 M-BM-5M) and low (20 M-BM-5M) concentrations of chromate (K2CrO4) vs non-chromate added (Control). Four biological replicates, one replicate per array.
Project description:Transcriptional profiling of Arabidopsis thalina seedlings in response to high (140 µM) and low (20 µM) concentrations of chromate (K2CrO4). Low concentrations of chromate (e.g. 40 µM) promoted primary root growth, while high concentrations (e.g. 140 µM) repressed growth and increased formation of root hairs, lateral roots and adventitious roots.
Project description:Helminth infection leads to lung remodelling. We used single cell ATAC sequencing (scRNA-seq) to analyze the changes in lung cells following exposure to N. brasiliensis at day 28 and day 45 post helminth infection
Project description:Helminth infection leads to lung remodelling. We used single cell RNA sequencing (scRNA-seq) to analyze the changes in lung cells following exposure to N. brasiliensis followed by subsequent exposure to SARS-COV2
Project description:We developed a simplified flow cytometry strategy in order to discriminate monocytes and macrophages in the lung of C57BL/6 mice. Using this strategy, we identified autofluorescent F4/80+ CD11c+ alveolar macrophages, non-autofluorescent CD64+Ly-6C- interstitial macrophages and Ly-6Chi monocytes residing in the lung of WT mice. A fraction of these Ly-6Chi monocytes corresponded to classical blood monocytes associated with the lung vasculature, but another fraction did not depend on CCR2, the chemokine receptor required for monocytes to egress from the bone marrow, as a population of lung Ly-6Chi monocytes was also present in the lung of Ccr2-/- mice. A remaining question was whether lung monocytes represented a particular population of monocytes that could be distinguishable from the classical CCR2-dependent blood monocytes. To address this issue, we performed a transcriptomic comparison of Ly-6Chi monocytes recovered from flushed lung of WT mice (â60% of CCR2- dependent classical blood monocytes and â40% of lung monocytes) and Ccr2-/- mice (more than 95% of lung monocytes). In addition, we tested whether exposure to TLR ligands would affect interstitial macrophages, and we compared to transcriptome of IM at steady-state and IM 1 week after administration of 50 µg CpG-DNA intratracheally.