Sleuthing the Microbiome Reveals Undercover Agents of Oncogenesis

The annual Astute Clinician Lecture was established in 1998 through a gift from the late Dr. Robert W. Miller and his wife, Haruko. It honors U.S. scientists who have observed unusual clinical occurrences and, by investigating them, have opened an important new avenue of research. The lectureship exemplifies how astute clinical observations can lead to innovative research. Speakers are proposed by members of the Medical Executive Committee (MEC) with voting for the top three candidates. Selection from this slate of candidates is made by the NIH Director. An expert in foodborne and intestinal infections, Cynthia Sears is a professor of medicine and oncology at the Johns Hopkins University School of Medicine as well as a professor of molecular microbiology and immunology at the Bloomberg School of Public Health. She is the microbiome program leader of the Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins and is director of the Johns Hopkins Germ-free Murine Facility. She is an infectious diseases expert who has focused on gut infections including diarrhea, foodborne illnesses Clostridium difficile (C. diff) and Helicobacter pylori during her career. In the laboratory and in clinical settings, she has studied the pathogenesis of enterotoxigenic Bacteroides fragilis (ETBF) over the past 25 years. The current focus of the Sears laboratory is to determine how the microbiota and specific bacteria contribute to colon carcin ogenesis. The Sears laboratory integra...
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