Damon Tumes

School of Biological Sciences

Faculty of Sciences, Engineering and Technology


Research themes and projects in the Allergy and Cancer Immunology Laboratory (Tumes Lab):

Epigenetic regulation of Th2 cells in chronic allergic inflammation

Almost every cell in an individual has identical DNA yet can differentiate into all of the specialized cells of the body. This is accomplished via epigenetic regulation of gene expression. Our laboratory investigates how allergy associated T cells called Th2 cells are epigenetically programmed to drive diseases including asthma and chronic rhinosinusitis. Gata3 is a key driver of Th2 cell differentiation, and we have defined an intronic enhancer region of the Gata3 gene that is very important for epigenetic programming of Th2 cells. This project will extend these findings to determine how epigenetic regulation of Gata3 occurs in CD4 T cells using in vitro models of Th2 cell differentiation, 3D analysis of chromatin conformation, and newly developed in vivo asthma models.

 
Defining inflammatory networks and granulocyte heterogeneity in severe asthma

Severe asthma affects one in six asthmatics, yet this cohort comprises more than half of the $28 b/year asthma cost to Australia as these patients have a higher risk of life-threatening asthma attacks, poorer quality of life and progressive non-reversible loss of airway function. This project will 1) use spatial transcriptomics and computational analysis of cell-cell signalling networks to define inflammatory networks underlying severe steroid resistant airway inflammation and 2) use single cell RNA-Sequencing and proteomics to define new granulocyte subsets in the airways of humans with asthma. Until recently, eosinophils were viewed as homogenous effector cells that attack parasitic worms and viruses and often underlie chronic asthma. We have defined several new subsets of eosinophils in the airways of patients with chronic rhinosinusitis and asthma and this project will determine their functions and the potential to target them to treat severe airway disease.

 

Hijacking allergic inflammation to treat cancer

Groundbreaking discoveries in immunotherapy, such as inhibition of checkpoint receptors on T cells and chimeric antigen receptor (CAR) T cells have provided new hope in the war against cancer. Allergic inflammation manifests as strong aberrant responses to antigens in the environment; however, how these pathways intersect with cancer remains poorly understood. We have shown that polarisation of CD4 T cells to produce allergy driving cytokines results in enhanced ability to kill established lymphomas. This exciting finding shows that it may be possible to harness the strong pathophysiological mechanisms that normally drive allergic inflammation to treat cancer. This project will define how we can enhance T cell function in cancer and how the effector granulocytes (e.g. eosinophils, mast cells and basophils) that normally drive allergy can be manipulated to abolish solid tumors. 

 

Deciphering epithelial programming events that potentiate development of asthma

Respiratory infections in early life are strongly associated with asthma development yet the mechanisms are unknown. This project uses in vitro 3D tissue organoid differentiation models and analysis of airway tissue from humans to determine how the airway epithelium is epigenetically programmed during differentiation and during early life.

MRFF Preventive and Public Health Research Initiative Chronic Respiratory Conditions Grant Proposal – Stream 1 (2024-2028). Role Co-CI. Reducing Steroid and Antibiotic Use in Rhinosinusitis and Asthma with Precision Medicine. 

The Hospital Research Foundation project grant (2024-2025). Role Co-CI.  Investigating the role of a novel genetic loci underlying urticaria development. 

NHMRC Ideas Grant APP (2024-2027). Role AI. Elucidating the function of a novel regulator of IgE-mediated mast cell activation and chronic spontaneous urticaria development. 

Channel 7 Children’s Research Foundation (2022-2024). Role CIA. Does airway epithelial progenitor cell reprogramming by viral and bacterial infections cause childhood asthma? 

The Hospital Research Foundation project grant (2022-2024). Role CIA. Creating a diagnostic tool to identify antigens causing IgE-and non-IgE-mediated inflammation in people with eczema.

The Hospital Research Foundation project grant (2022-2024). Role CIA. Mapping inflammatory networks in asthmatics for personalised therapy. 

NHMRC Ideas Grant APP2004288 (2021-2024). Role: CIB. Resolving eosinophil and inflammatory heterogeneity in chronic allergic airway disease for safer, effective and lasting precision therapies.

The Hospital Research Foundation Mid-Career Fellowship (01 Jan 2019-31 Dec 2021) - Role: Sole CI. Toward personalised medicine for allergic inflammation and harnessing allergic pathways to treat cancer.


Connect With Me
External Profiles