Project description:This dataset profiles T cells recovered from the airway lumen (bronchoalveolar lavage, BAL), medLN and lung tissues of mice exposed to house dust mite (HDM) allergen, a model of allergic airway inflammation. The aim of this experiment was to capture, at single-cell resolution, both the transcriptional states and the T cell receptor sequences (TCR) to identify T cell clones in the airway . The BAL data serve as an in vivo application of PhyloTrajectory and used to compare inferred trajectories with Dog Allergen model. Mouse was exposed to HDM. T cells (CD4+ CD3+ B220−) were isolated from bronchoalveolar lavage by FACS, and processed for single-cell RNA sequencing with paired TCR (VDJ) profiling using 10x Genomics Chromium.
Project description:Segmental allergen challenge increases the percentage of eosinophils in bronchoalveolar lavage (BAL) cells. Mepolizumab, an anti-IL-5 therapeutic antibody, decreases the number of eosinophils in bronchoalveolar lavages (BAL). The use of both procedures allows to define genes that are either expressed by eosinophils or dependent on eosinophil presence in the airways.
Project description:Segmental allergen challenge increases the percentage of eosinophils in bronchoalveolar lavage (BAL) cells. Mepolizumab, an anti-IL-5 therapeutic antibody, decreases the number of eosinophils in bronchoalveolar lavages (BAL). The use of both procedures allows to define genes that are either expressed by eosinophils or dependent on eosinophil presence in the airways. Cells from Bronchoalveolar lavages (BAL) are obtained by bronchoscopy before (V5) and 48 h after a segmental allergen challenge (V6) in atopic and mild astmatics. This procedure was repeated in the same two subjects 2 months later and 1 month after an injection of mepolizumab (V22 is before challenge and V23 after challenge). Cells were immediately lysed and isolated total RNAs were analyzed using the Human Genome 1.0 ST GeneChip arrays (Affymetrix, Santa Clara, CA).
Project description:Genome wide DNA methylation profiling of 4 cell populations purified from paediatic bronchoalveolar lavage samples. The cell types profiled are alveolar macrophages, granulocytes, lymphocytes and alveolar epithelial cells. Fluorescence-activated single cell sorting was used to purify the cell populations of interest using previously described methods (Shanthikumar, AJRCMB, 2020 ;63(2):152-159). Genome wide DNA methylation profiling was performed via the EPICArray. These data can be used for reference based deconvolution of cell proportion of bronchoalveolar lavage samples. DNA extracted from raw BAL (n=6) was also profiled using the EPICArray, allowing for validation of reference based deconvulution.
Project description:Some patients with common variable Immunodeficiency (CVID) present with (Granulomatous-Lymphocytic Interstitial Lung Disease) GLILD. Here we compared the transcriptional profile of sorted immunecell subsets (CD21low and CD21pos B cells), T peripheral helper cells and PD1negative CD4 T cells, CD8 and mocrophages derived from the bronchoalveolar lavage (BAL) from patients with CVID and GLILD and sarcoidosis.