Search
Research
A complete genome of an obligately lytic Pseudomonas aeruginosa bacteriophage, Minga-mokiny 4We report the isolation of a bacteriophage with obligately lytic activity against Pseudomonas aeruginosa from wastewater. The reported phage, Minga-mokiny 4, appears to belong to the Schitoviridae family, is of the Litunavirus genus, and has a 72,362-bp genome. No known genes associated with lysogeny, bacterial resistance, or virulence were predicted.
Research
Macrophage PD-1 associates with neutrophilia and reduced bacterial killing in early cystic fibrosis airway diseaseMacrophages are the major resident immune cells in human airways coordinating responses to infection and injury. In cystic fibrosis, neutrophils are recruited to the airways shortly after birth, and actively exocytose damaging enzymes prior to chronic infection, suggesting a potential defect in macrophage immunomodulatory function.
Research
ACE2 expression is elevated in airway epithelial cells from older and male healthy individuals but reduced in asthmaCOVID-19 is complicated by acute lung injury, and death in some individuals. It is caused by SARS-CoV-2 that requires the ACE2 receptor and serine proteases to enter AEC. We determined what factors are associated with ACE2 expression particularly in patients with asthma and COPD. We obtained lower AEC from 145 people from two independent cohorts, aged 2-89 years, Newcastle (n = 115) and Perth (n = 30), Australia. The Newcastle cohort was enriched with people with asthma (n = 37) and COPD (n = 38). Gene expression for ACE2 and other genes potentially associated with SARS-CoV-2 cell entry was assessed by qPCR, and protein expression was confirmed with immunohistochemistry on endobronchial biopsies and cultured AEC.
Research
Toxicity of different biodiesel exhausts in primary human airway epithelial cells grown at air-liquid interfaceBiodiesel is created through the transesterification of fats/oils and its usage is increasing worldwide as global warming concerns increase. Biodiesel fuel properties change depending on the feedstock used to create it.
Research
Effect of human rhinovirus infection on airway epithelium tight junction protein disassembly and transepithelial permeabilityHRV-1B infection directly alters human airway epithelial TJ expression leading to increased epithelial permeability potentially via antiviral response of IL-15
Research
Suppression of adrenomedullin contributes to vascular leakage and altered epithelial repair during asthmaThe anti-inflammatory peptide, adrenomedullin (AM), and its cognate receptor are expressed in lung tissue, but its pathophysiological significance in airway...
Research
The airway epithelium is a direct source of matrix degrading enzymes in bronchiolitis obliterans syndromeLong-term survival after lung transplantation is hindered by the development of bronchiolitis obliterans syndrome (BOS).
Research
Overcoming Challenges to Make Bacteriophage Therapy Standard Clinical Treatment Practice for Cystic FibrosisIndividuals with cystic fibrosis (CF) are given antimicrobials as prophylaxis against bacterial lung infection, which contributes to the growing emergence of multidrug resistant (MDR) pathogens isolated. Pathogens such as Pseudomonas aeruginosa that are commonly isolated from individuals with CF are armed with an arsenal of protective and virulence mechanisms, complicating eradication and treatment strategies.
Research
Alpha-1 antitrypsin mitigates the inhibition of airway epithelial cell repair by neutrophil elastaseFree NE activity is deleterious for epithelial homeostasis and support the hypothesis that proteases in the airway contribute to CF structural lung disease
Research
Hypoxia and sterile inflammation in cystic fibrosis airways: Mechanisms and potential therapiesIn this review, we consider recent evidence regarding hypoxia and sterile inflammation in cystic fibrosis airways