Reverse Genetics with a Full-Length Infectious cDNA of the Middle East Respiratory Syndrome Coronavirus Scientists showed dipeptidyl peptidase 4 expression, Middle East respiratory syndrome coronavirus replication, and RNA and protein synthesis in human airway epithelial cell cultures, primary lung fibroblasts, primary lung microvascular endothelial cells, and primary alveolar type II pneumocytes, demonstrating a much broader tissue tropism than severe acute respiratory syndrome coronavirus. [Proc Natl Acad Sci USA] Abstract | Full Article Protective Effect of Hypercapnic Acidosis in Ischemia-Reperfusion Lung Injury Is Attributable to Upregulation of Heme Oxygenase-1 Researchers investigated whether heme oxygenase-1 (HO-1) contributes to the protective effects of hypercapnic acidosis (HCA) in ischemia-reperfusion-induced lung injury. HO-1 siRNA significantly reversed HCA-mediated inhibition of NF-κB signaling in A549 cells subjected to hypoxia-reoxygenation. [PLoS One] Full Article EGF-Induced Bronchial Epithelial Cells Drive Neutrophil Chemotactic and Anti-Apoptotic Activity in Asthma Primary bronchial epithelial cells from healthy subjects, mild asthmatics and moderate-to-severe asthmatics were stimulated with epidermal growth factor (EGF), a model that mimics a repairing epithelium. EGF induced the epithelium to produce soluble mediators with neutrophil chemotactic and pro-survival activities which were related to the clinical severity of asthma. [PLoS One] Full Article Cycloheximide and Lipopolysaccharide Downregulate αENaC mRNA via Different Mechanisms in Alveolar Epithelial Cells The regulatory mechanisms of α epithelial Na+ channel (αENaC) mRNA expression by cycloheximide and lipopolysaccharide from Pseudomonas aeruginosa were studied. Both agents decreased αENaC mRNA expression to 50% of control values after 4 hours. [Am J Physiol Lung Cell Mol Physiol] Abstract LUNG CANCER Co-Assessment of Cell Cycle and Micronucleus Frequencies Demonstrates the Influence of Serum on the In Vitro Genotoxic Response to Amorphous Monodisperse Silica Nanoparticles of Varying Sizes Researchers investigated the influence of serum on the induction of micronuclei by nanoparticles of different sizes. Therefore they used A549 human lung carcinoma cells and amorphous monodisperse silica nanoparticles as models. [Nanotoxicology] Abstract p190A RhoGAP Is Involved in EGFR Pathways and Promotes Proliferation, Invasion and Migration in Lung Adenocarcinoma Cells Researchers documented inhibition of phosphorylation of p190-A RhoGAP (p190) by epidermal growth factor receptor (EGFR) -tyrosine kinase inhibitors treatment in lung adenocarcinoma cell lines. Small interfering RNA-mediated knockdown of p190 leads lung adenocarcinoma cells to growth suppression and to inhibition of invasion/migration through inducing cell cycle arrest but not apoptosis. [Int J Oncol] Abstract SIRT3 Regulates Cell Proliferation and Apoptosis Related to Energy Metabolism in Non-Small Cell Lung Cancer Cells through Deacetylation of NMNAT2 The interaction on growth, proliferation, apoptosis of non-small cell lung carcinoma (NSCLC) cell lines, and energy metabolism related to SIRT3 were investigated. Low expression of SIRT3 significantly inhibited mitotic entry, growth and proliferation of NSCLC cell lines and promoted apoptosis, which was related to energy metabolism involving in the interaction between SIRT3 and NMNAT2. [Int J Oncol] Abstract | Full Article Targeting SHP2 for EGFR Inhibitor Resistant Non-Small Cell Lung Carcinoma Researchers showed that Src homology 2-domain containing protein tyrosine phosphatase-2 (SHP2) is required for EGF-stimulated ERK1/2 phosphorylation and proliferation in epidermal growth factor receptor (EGFR) inhibitor resistant non-small cell lung cancer cell line H1975, which harbors the EGFR T790M/L858R double-mutant. [Biochem Biophys Res Commun] Abstract The Antiproliferative Effect of Moringa oleifera Crude Aqueous Leaf Extract on Cancerous Human Alveolar Epithelial Cells Scientists investigated the antiproliferative effect of Moringa oleifera leaf extract (MOE) in cancerous A549 lung cells. A significant increase in reactive oxygen species with a concomitant decrease in intracellular glutathione levels in MOE treated A549 cells was observed. [BMC Complement Altern Med] Abstract | Full Article |