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We are currently working on three main strands of research:

1. CD161++/MAIT cell biology. These lymphocytes, which are abundant in human blood and highly enriched in the liver, have the capacity to respond to both bacterial and inflammatory signals. We are trying to understand their in vivo role in host defence and immunopathology, through the analysis of patients and in vitro studies of function and activation.

2. HCV immune defence. In collaboration with the groups of Ellie Barnes and Adrian Hill, we are involved in vaccine studies using adenoviral vectors to track vaccine-induced cells and analyse their capacity to recognise viral variants. Upcoming studies include an analysis of host responses in relation to novel drug therapies and the use of new viral sequencing approaches to define the impact of host immunity.

3. Memory inflation. Some persistent virus infections induce a striking host response, which we have termed memory "inflation"; this includes the generation of very large functional T cell populations, which can increase with time. While this was first noted in cytomegalovirus infections, we have found a similar profile of cells after adenoviral vector vaccination. Our group is working to define the qualities of these induced cells, and the critical factors that drive memory inflation