Australian scientists have revealed a promising new treatment for the most severe forms of asthma, a chronic lung disease that affects about 340 million people worldwide.
Researchers from the University of South Australia (UniSA) and Royal Melbourne Institute of Technology (RMIT), have found that a family of proinflammatory molecules called beta common cytokines control inflammation and scarring of the airways (fibrosis) in severe and steroid-resistant asthma.
They believe that a human therapeutic antibody called trabikihart could be the key to effectively blocking the inflammation and scarring.
The findings, published in the Journal of Allergy and Clinical Immunology, are a result of a joint study led by researchers from the University of South Australia (UniSA) and the Royal Melbourne Institute of Technology (RMIT), in collaboration with researchers from CSL and SA Pathology.
Joint study leader Dr Damon Tumes, Head of the Allergy and Cancer Immunology Laboratory in the Centre for Cancer Biology*, says the findings are significant.
“Inflammation and tissue damage in severe asthma is caused by several types of immune cells that enter the lungs due to allergens, viruses and other microbes that interact with the airways,” Dr Tumes says.
“In some people, the inflammation is resistant to steroids – the first treatment option for controlling severe asthma.
“Currently, limited treatment options are available for severe asthma. New and existing drugs often only target single molecules when multiple overlapping cells and inflammatory pathways are responsible for asthma.
“Targeting multiple inflammatory cytokines with a single drug may be the key to treat and control complex and severe chronic airway disease.”
The most recent statistics show a 30% rise in asthma-related deaths in Australia (467 people) in 2022, with South Australia recording the most drastic increase at 88%.
2022 marked the highest asthma deaths since 2017 in Australia, partly driven by the post-Covid return of viral respiratory infections which are associated with increases in asthma hospitalisations.
Widespread rainfall, triggering an increase in fungal spores and pollen, is also a factor.
Notes to editors
“Dual inhibition of airway inflammation and fibrosis by commonβcytokine receptor blockade” is published in the Journal of Allergy and Clinical Immunology. DOI: 10.1016/j.jaci.2023.10.021
*The Centre for Cancer Biology is an alliance between the University of South Australia (UniSA) and CAHLN/SA Pathology. (Newswise/KV)
