Andrea Sant, Ph.D.

The research in my laboratory centers around the molecular events that regulate MHC class II-restricted antigen presentation and CD4 T cell activation in vivo. We are particularly focussed on making connections between the mechanisms involved in intracellular peptide acquisition by class II molecules and use of this insight to rationally enhance human vaccine design. We seek to understand the elements in vivo that dictate the selective specificities in CD4 T cells during protective immune responses, and the competitive events that shape selective recognition of foreign and pathogenic organisms and proteins in vivo. We are also focused on understanding the regulatory events in vivo that shape the specificity and function of immune responses.

Our research interests include understanding the relationship between the biochemistry of peptide:MHC class II complexes and specificity of CD4 T cells during both protein and peptide vaccination and how this link can be harnessed to shape CD4 T cell specificity. A second major interest in our laboratory is the role of CD4 T cells in immunity to influenza infection and vaccination, using both animal models and human studies. We are particularly interested in the role that memory CD4 T cell play in protective immunity to potentially pandemic influenza strains.

Read full Research bio »