Activation status of airway immune cells is a defining feature of severe asthma, regardless of fungal sensitisation

Emily L. Plumpton, Stefano A. P. Colombo, Matthew Steward, Sheila L. Brown, Saba Khan, Gaël Tavernier, Helen Francis, Hazel Platt, Tracy Hussell, William G. C. Horsnell, David W. Denning, Robert Niven, Angela Simpson, Andrew S. MacDonald, Peter C. Cook*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Airborne fungi are potent inducers of respiratory disease and cause the debilitating conditions severe asthma with fungal sensitisation (SAFS) and allergic bronchopulmonary aspergillosis (ABPA). However, the immune cell types and the inflammatory airway environment that defines SAFS and ABPA patients is not extensively characterised. To address this, we recruited SAFS and ABPA patients, asthmatics without evidence of fungal sensitisation and healthy controls (n = 20 individuals per group). Immune cells were isolated from collected sputum and peripheral blood samples and immunophenotyping was performed via flow cytometry. By applying a machine learning approach to our dataset, we identify a critical association between CD4+ T cells, type 2 conventional dendritic cells, eosinophils, proinflammatory factors and severe respiratory disease. These complex immune signatures should be investigated further to improve the diagnostics and treatment of SAFS and ABPA.

Original languageEnglish
Number of pages12
JournalMucosal Immunology
Early online date19 Nov 2025
DOIs
Publication statusE-pub ahead of print - 19 Nov 2025

Keywords / Materials (for Non-textual outputs)

  • Asthma
  • Sputum
  • T cells
  • Dendritic cells
  • Eosinophils

Fingerprint

Dive into the research topics of 'Activation status of airway immune cells is a defining feature of severe asthma, regardless of fungal sensitisation'. Together they form a unique fingerprint.

Cite this