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Steven A. Porcelli, M.D.

Steven A. Porcelli, M.D.

Professor and Chair, Microbiology & Immunology

Professor, Medicine (Rheumatology)

Murray and Evelyne Weinstock Chair in Microbiology & Immunology

Microbiology & ImmunologyT-cell immunityTuberculosis (TB)

Dr. Porcelli studies the control of acquired immunity – the type that develops when our bodies generate specific responses involving antibodies or T cells following exposure to vaccines or infection by disease-causing microbes.  In particular, he investigates how T cells – which supervise both defense against microbes and immune tolerance – control the acquired immune response. read more...


Jeffrey E. Segall, Ph.D.

Jeffrey E. Segall, Ph.D.

Professor, Anatomy and Structural Biology

Professor, Pathology

Betty and Sheldon Feinberg Senior Faculty Scholar in Cancer Research

Biomedical technologiesImagingTumor cell imaging

Dr. Segall studies how tumor cells invade tissues and spread through the body. He has developed sophisticated imaging methods for following individual tumor cells moving in living animals. For example, one of his techniques involves a tiny glass window implanted in the skin of a mouse that allows scientists to track individual cancer cells as they spread a tumor site and attack other parts of the body. This technique could one day be used for assessing the effectiveness of specific drugs in preventing cancer from metastasizing. read more...