Diane Elise Peters, D.V.M., Ph.D., M.S.

The Peters lab applies a translational medicine approach to study the pathobiology of inflammatory bowel disease (IBD), with the ultimate goal of developing mechanistically novel IBD therapeutics. Our laboratory uses preclinical rodent colitis models and genetically modified mice to characterize pathways involved in inflammation and pain in IBD, with validation of all findings in human patient samples. We employ molecular pharmacology to interrogate pathways critical to colitis initiation and progression, and work closely with Johns Hopkins Drug Discovery to develop rationally-designed small molecule drugs targeting pathways of interest.

Current efforts in the lab include the development of small molecule glutamate carboxypeptidase (GCPII) inhibitors for use in IBD. GCPII is an enzyme that is highly and specifically upregulated in IBD and we, and others, have shown that GCPII inhibitors protect mice from developing colitis. Expanding on this finding, ongoing activities in our lab include validating GCPII as a clinical biomarker in defined IBD patient populations, exploring the biology of GCPII in the colon, and profiling mechanism(s) of actions of GCPII inhibitors in colitis.