Project description:To test the role of FAO in epithelium differentiation, we assessed genome-wide transcriptional changes in Cpt1a+/- and Cpt1a-/- primary mouse tracheal epithelial cell (mTEC) cultures analysed at the end of the expansion phase (ALI day 0) or at day 5 and 7 post air-exposure by RNA-seq.
Project description:Expression data from Influenza A infected mouse primary tracheal epithelial cell cultures (MTEC), from wild-type, IFNAR1-/-, IL28Ra-/- and IFNAR1-/- IL28Ra-/- double ko
Project description:Influenza viruses pose a significant burden on global human health. Influenza has a broad cellular tropism in the airway, but how infection of different epithelial cell types impacts replication kinetics and burden in the airways is not fully understood. Using primary human airway cultures, which recapitulate the diverse epithelial cell landscape of the human airways, we investigated the impact of cell type composition on virus tropism and replication kinetics. Cultures were highly diverse across multiple donors and 30 independent differentiation conditions and supported a range of influenza replication. Although many cell types were susceptible to influenza, ciliated and secretory cells were predominantly infected. Despite the strong tropism preference for secretory and ciliated cells, which consistently make up 75% or more of infected cells, only ciliated cells were associated with increased virus production. Surprisingly, infected secretory cells were associated with overall reduced virus output. These data highlight the heterogeneous outcomes of influenza virus infections in primary human airway cultures and the disparate impacts of infected cell identity on burst size, even among preferentially infected cell types.
Project description:Influenza viruses pose a significant burden on global human health. Influenza has a broad cellular tropism in the airway, but how infection of different epithelial cell types impacts replication kinetics and burden in the airways is not fully understood. Using primary human airway cultures, which recapitulate the diverse epithelial cell landscape of the human airways, we investigated the impact of cell type composition on virus tropism and replication kinetics. Cultures were highly diverse across multiple donors and 30 independent differentiation conditions and supported a range of influenza replication. Although many cell types were susceptible to influenza, ciliated and secretory cells were predominantly infected. Despite the strong tropism preference for secretory and ciliated cells, which consistently make up 75% or more of infected cells, only ciliated cells were associated with increased virus production. Surprisingly, infected secretory cells were associated with overall reduced virus output. These data highlight the heterogeneous outcomes of influenza virus infections in primary human airway cultures and the disparate impacts of infected cell identity on burst size, even among preferentially infected cell types.
Project description:Investigation whether tracheal organ cultures (TOCs) are a suitable model for characterization of early immune response triggered by influenza virus infection in the respiratory tract. Comparison to in vivo infected animals.
Project description:Oligonucleotide microarrays were used to establish a profile for gene expression in wild-type airway epithelial cells after paramyxoviral infection. Analysis was performed on mRNA isolated from SeV-infected primary-culture mouse tracheal epithelial cells that were maintained under physiologic conditions (air-liquid interface). Keywords: Treatment Comparison
Project description:Bulk RNA-seq Analysis of In Vitro-Differentiated Murine Tracheal Epithelial Cells from Wild-type and Dp(16)1/Yey Mice When Unchallenged and After Influenza A Virus Infection
Project description:To investigate how murine airway epithelial cells respond to Influenza infection and how important interferon type I signaling is for this response, we harvested airway epithelial cells from the tracheas of wild type, interferon type I knockout(IFNaR-/-) and STAT1 knockout (STAT1-/-) mice and cultured them as previously described (Pickles et al,1998) in polarized airway epithelial cell cultures (mAECs). Triplicate mAECs from each type of mouse (wt,IFNaR-/-,STAT1-/-) were infected with 2X105 PFUs Influenza A (WSN) for 2h or mock inoculated and harvested 24h after infection. Triplicate murine polarized airway epithelial cell cultures from wild type, IFNaR-/- or STAT1-/- mice were mock treated or infected with 2x10^5 PFUs of Influenza A (WSN) for 2h and harvested 24 h post infection.
Project description:The project aim at studying transcriptional changes by BRB-seq of porcine alveolar epithelial cells line infected with wild type influenza virus compared to live attenuated influenza viruses. In addition, primary porcine nasal epithelial cells was also added to be able to compare how the alveolare epithelial cells line compare to primary cells. Finally, additional positive control including procine alveolar epithelial cells stimulated with Poly I:C or infected with IFN inducing Sendei virus was added.
