Judith A.J. Steen

Judith A.J. Steen is a Research Professor at Harvard Medical School's Neurobiology Department and co-leads the Steen Laboratory at Boston Children's Hospital. Her research develops novel mass spectrometric methods for proteomic analysis, focusing on disease biomarkers, cell cycle control, and systems biology applications in pediatric diseases.

Dr. Steen studied chemistry and biochemistry at the University of Toronto and trained in mass spectrometry (University of Southern Denmark) and cell biology (Harvard University). Her lab combines proteomics with biochemical approaches to study neurological diseases using animal models.

Recent articles (2020-2025) focus on tau proteoforms in Alzheimer's disease, proteomic methods for pathological analysis, and biomarker discovery in bronchopulmonary dysplasia. Her work utilizes advanced fractionation techniques and computational pipelines to analyze complex protein mixtures.