Infectious Diseases
Hagan Lab

Hagan Research Lab

Our lab aims to harness computational approaches for integrating diverse high-throughput datasets to understand how the immune system's various components coordinate during response to infection or stimulation. We are particularly interested in using these approaches to understand how novel adjuvants or vaccine formulations can improve the magnitude, breadth and durability of immune responses to vaccination.

Another area of interest in our lab is examining how changes in the gut microbiome shape immune homeostasis and responsiveness. Some of our previous work demonstrated that antibiotics-induced gut microbiome perturbation could impair antibody responses to influenza vaccination in humans. Multi-omic data integration in this study identified strong associations between perturbations in bile acid metabolism due to loss of key bacterial species in the gut and systemic inflammatory responses detected in blood following antibiotics treatment, demonstrating the potential for the gut microbiome to regulate immunity through its impact on host metabolism. These findings have prompted further work in our lab to understand microbiome-immune system interactions and the relationship between the microbiome and chronic inflammation during aging, which is a central component of the pathogenesis of many age-related diseases.

About the PI

Thomas Hagan.

Thomas Hagan, PhD

I began my career with Infectious Diseases at Cincinnati Children's in 2021.

My research interests include systems immunology, vaccinology, and microbiome-immune system interaction.

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