Innate Immunity

Dr. Hurrell’s lab explores the dynamic interplay between nutrition, metabolism, and immune regulation, focusing on how specific nutrients and metabolic pathways influence the development and function of immune cells in both health and disease, particularly asthma and allergy. Utilizing a variety of cutting-edge mouse models, including genetically engineered strains, specialized diets and established asthma models, his team investigates the impact of dietary factors on immune responses and asthma pathogenesis. By applying techniques such as flow cytometry, transcriptomics, and metabolomics to profile immune cell populations and their metabolic states, the lab aims to identify innovative dietary strategies that can modulate immune function and improve lung health.

Research Interests: We have long appreciated the role that neutrophils play as first responders of the immune system during microbial infections. New evidence is emerging on the transcriptomic and phenotypic diversity of this highly abundant circulating white blood cell. In the Diaz-Ochoa lab we combine classical immunological techniques with a systems approach to gain mechanistic insights on the contributions of neutrophil diversity in host responses to bacterial infections.

Research Interests: As a cellular microbiologist, my research focuses on leveraging insights from pathogen studies to deepen our understanding of host cellular processes. My lab's primary aim is to uncover the virulence mechanisms driving Pseudomonas aeruginosa pathogenesis in wound infections, as well as the eukaryotic host responses designed to control these infections. We also utilize bacterial toxins as molecular tools to explore key mammalian cellular processes, including cell cycle regulation, cytokinesis, programmed cell death (apoptosis), and apoptotic compensatory proliferation signaling. A particular area of interest for us is the innate immune dysregulation that makes diabetic wounds susceptible to infection and impairs healing. In addition, we have identified critical innate immune pathways that recognize P. aeruginosa and investigated how this pathogen suppresses these immune responses. Additionally, we explore the use of immunomodulators to enhance innate immune responses as a strategy for combating infections at surgical sites.