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ACE2 expression is elevated in airway epithelial cells from older and male healthy individuals but reduced in asthma

COVID-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.

The development of a consensus statement for the prescription of powered wheelchair standing devices in Duchenne muscular dystrophy

PURPOSE: To develop a consensus statement for the prescription of a Powered Wheelchair Standing Device (PWSD) in young people with Duchenne muscular dystrophy (DMD). MATERIALS AND METHODS: An international multidisciplinary panel comprising clinicians and users (young people with DMD) along with their parents was consulted. A literature review was undertaken and a Delphi method was utilised to generate consensus statements.

Assessing the unified airway hypothesis in children via transcriptional profiling of the airway epithelium

Upper and lower airways are conserved in their transcriptional composition, and variations associated with disease are present in both nasal and tracheal epithelium

Azithromycin Partially Mitigates Dysregulated Repair of Lung Allograft Small Airway Epithelium

Chronic airway injury and dysregulated repair programs are evident in airway epithelium obtained from patients with bronchiolitis obliterans syndrome

Blocking Notch3 Signaling Abolishes MUC5AC Production in Airway Epithelial Cells from Asthmatics

We demonstrate that NOTCH3 is a regulator of MUC5AC production

Rhinovirus Infection Is Associated With Airway Epithelial Cell Necrosis and Inflammation via Interleukin-1 in Young Children With Cystic Fibrosis

This study found rhinovirus infection drives necrotic cell death in cystic fibrosis airway epithelial cells

Azithromycin reduces airway inflammation induced by human rhinovirus in lung allograft recipients

Our data illustrate that rhinovirus infection is capable of infecting upper and lower airway epithelial cells, driving cell death and inflammation

Oxidative stress and abnormal bioactive lipids in early cystic fibrosis lung disease

Several lipid biomarkers of early cystic fibrosis lung disease were identified, which point toward potential disease monitoring and therapeutic approaches

Novel intranasal phage-CaEDTA-ceftazidime/avibactam triple combination therapy demonstrates remarkable efficacy in treating Pseudomonas aeruginosa lung infection

Given the rise of multidrug-resistant (MDR) Pseudomonas aeruginosa infections, alternative treatments are needed. Anti-pseudomonal phage therapy shows promise, but its clinical application is limited due to the development of resistance and a lack of biofilm penetration. 

Thoracic Society of Australia and New Zealand position statement: The safe clinical use of sputum induction for bio-sampling of the lower airways in children and adults

Sputum induction is widely used in clinical settings for collection of biological samples from the lower airways. However, in recent years sputum induction has been associated with serious adverse events and even death. This position statement was commissioned by the Thoracic Society of Australia and New Zealand to address major adverse events of two deaths associated with sputum induction that have occurred in Australia in 2021, and outlines best practice for the safe use of sputum induction.