Randy Longman, MD / PhD, PI

I am a gastroenterologist and mucosal immunologist focused on inflammatory bowel disease (IBD) research.  I completed my undergraduate studies at Yale University and my graduate work at the Tri-Institutional (Rockefeller/Sloan-Kettering/Cornell) MD-PhD Program.  I did clinical Internal Medicine and Gastroenterology training at Columbia University Medical Center and post-doctoral training with Dr. Dan Littman at NYU.  The intricate dialogue between host and pathogen fascinates me!  My research aims to discover novel mechanisms of microbial regulation of mucosal and systemic immunity and to develop new, targeted therapies for IBD. Outside of science, I love spending time with my family, skiing, and playing soccer! 


Viola Woo, Lab Manager / Research Technician

Born and raised in Brooklyn, Viola obtained her undergraduate degree in Biomedical Sciences at SUNY Buffalo. After performing two years of undergraduate research in a molecular biology lab, she worked as a research associate in NYU neuroscience shortly after graduation. From the brain to gut, she is fascinated by the complexity and interactions of different human biological systems. She wishes to pursue a career in biomedical research and will be applying to graduate school in 2017. Aside from being a lab rat, she likes to do yoga and run marathons (on Netflix). 


Jim Castellanos, MD / PhD Student

After graduating from high school in southern California, Jimmy served in the United States Marine Corps as an aviation ordnance technician, including a combat tour in support of Operation Iraqi Freedom. He holds a Bachelor of Arts degree from Claremont McKenna College and a Master of Fine Arts in Creative Writing from the University of Arizona. Outside of lab, Jimmy LOVES to watch Barcelona soccer.

Monica Viladomiu, Post-Doctoral Research Fellow

Monica grew up in Barcelona (Spain), where she earned her undergraduate degree in Biotechnology. After college, she joined the Genetics, Bioinformatics and Computational Biology program at Virginia Tech. Her doctoral work combined experimental immunology and high-throughput sequencing approaches to characterize the mechanisms by which mononuclear phagocytes contribute to chronic Helicobacter pylori persistence and differentially modulate adaptive immune responses, thus affecting disease outcome.  After receiving her Ph.D., she joined the Longman Lab as a post-doctoral associate. Trained as an immunologist, Monica is interested in microbial regulation of intestinal and systemic immune responses, with the ultimate goal to understand the underlying pathogenesis of inflammatory bowel diseases and develop new therapies to improve health outcomes.


Maeva Metz, PhD Student

Maeva grew up in Connecticut where she first became interested in microbes. She went on to pursue a B.S. in Microbiology at Miami University in Ohio minoring in Molecular Biology. There she conducted research on the multidrug-resistant pathogen, Acinetobacter baumannii, under the mentorship of Dr. Luis Actis, using molecular genetics to identify and characterize targets for antimicrobial therapeutics. Wanting to expand her knowledge of host-microbial interactions and mucosal immunology, she spent a summer conducting research in Dr. Wendy Garrett’s lab at Harvard Medical School investigating the role of the commensal Fusobacterium nucleatum in tumorigenesis of colorectal cancer. She is currently at Weill Cornell Medical College pursuing a Ph.D. in Immunology and Microbial Pathogenesis and is interested in investigating the mechanisms by which human derived commensal bacteria modulate the mucosal and systemic immune systems both at steady state and under acute or chronic inflammation. When she is not in lab, Maeva loves being outdoors hiking or you will find her at the local animal shelter playing with puppies!

Recent Alumni

Charlie Kivolowitz, Graduate Student, Thomas Jefferson University

Danny Victorio, Medical Student, Rush Medical College

Ahmed Abdulhamid, Internal Medicine Resident, Henry Ford Hospital

Amy Rupert, Medical Student

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