Susan Lynch, PhD

Director, Benioff Center for Microbiome Medicine

Our human microbiome research program focuses on the gastrointestinal and airway microbiomes and their influence on the development and maintenance of chronic inflammatory disease. We study the early-life origins of chronic inflammatory disease and have demonstrated a role for the neonatal gut microbiome and its metabolic products as a predictor of allergic asthma development in childhood.

Katrina Abuabara, MD

Assistant Professor

Dr. Abuabara studies the impact of inflammatory skin disease on overall health and the role of the skin in the aging process. Her interdisciplinary scientific approach combines genomic, physiological, environmental, and psychosocial variables to understand patient outcomes over time. Her goal is to develop truly personalized interventions that address both the pathophysiological and sociocultural aspects of disease to improve the lives of patients.

Nadav Ahituv, PhD


The Ahituv lab is focused on understanding the role of regulatory sequences in human biology and disease. Through a combination of comparative genomic strategies, biochemical assays, regulatory element analysis, human patient samples, mouse and fish genetic engineering technologies, and massively parallel reporter assays they are working to elucidate mechanisms whereby genetic variation within these sequences lead to changes in human phenotypes.

Margaret Alexander, PhD

Postdoctoral Scholar
Hooper Foundation

Chloe Atreya, MD, PhD

Associate Professor

Dr. Chloe E. Atreya specializes in gastrointestinal cancer, particularly colorectal cancer, at the UCSF Helen Diller Comprehensive Cancer Center. Her research focuses on the interplay of tumor genetics and response to therapies for colorectal cancer, with the goal of improving patient outcomes and quality of life by personalizing treatment.

Joel Babdor, PhD


Joel Babdor, PhD, is a postdoctoral researcher in the Spitzer lab. He uses high-throughput, high-dimensional technologies and computational methods to study the interactions between the human immune system and the microbiome at the systems level. He focuses on human research in healthy populations and in pathological settings where the immune system plays an important role (cancer, autoimmunity and organ transplantation).

Sergio Baranzini, PhD


Sergio E. Baranzini earned his degree in clinical biochemistry from the University of Buenos Aires, Argentina, in 1992. He graduated from the same institution in 1997 obtaining a PhD with honors in human molecular genetics. The subject of his PhD thesis was the characterization of genetic mutations leading to Duchenne’s muscular dystrophy. Dr. Baranzini then moved to the University of California at San Francisco to specialize in the analysis of complex hereditary diseases, in particular multiple sclerosis. During his postdoctoral stay in UCSF Dr.

Laura Barnes, MD

Resident Physician

Jody Baron, MD, PhD


Pauline Basso, PhD

Microbiology and Immunology

James Bayrer, MD, PhD

Assistant Professor

As a pediatric gastroenterologist and physician scientist, I am keenly aware of the challenges faced by our pediatric population. The intestinal epithelium comprises the human body’s greatest environmentally exposed surface and is the largest sensory and endocrine organ. My research utilizes human intestinal organoids and animal models to understand how the intestine senses and responds to both regular and inflammatory stimuli.

Jordan Bisanz, PhD

Microbiology and Immunology