Blekhman Lab

Lab Members

UChicago campus in fall

Principal Investigator

Ran Blekhman

✉ blekhman ~ uchicago.edu

📞 (773) 834-4533

Ran Blekhman, Ph.D.

Professor

Department of Medicine, Section of Genetic Medicine, University of Chicago

Ran Blekhman is a Professor of Genetic Medicine at the University of Chicago, where he leads a computational genomics lab studying the human microbiome and its role in health and disease. Using large-scale data, deep learning, and multi-omic integration, the lab works to understand how microbial communities vary across diverse contexts, interact with host biology, and drive human health and disease.

Dr. Blekhman holds a B.Sc. in Biology and Computer Science, and received a Ph.D. in Human Genetics from the University of Chicago, where he studied the evolution of gene regulation in primates. He completed his postdoctoral training at Cornell University, where he began his research on host-microbiome interactions. He joined UChicago in 2022, following nine years as faculty at the University of Minnesota, where he was recognized as a McKnight Land-Grant Professor and a Northrop Professor.

His research has been continuously funded by the NIH, and has been recognized with a Sloan Research Fellowship and a Scialog Fellowship. He serves on the editorial boards of Genome Biology and PLOS Biology, and his work has been covered by outlets including the New York Times, Science, Nature, Wired, and National Geographic. He writes publicly about microbiome science, research culture, and the future of biomedicine.

Staff Scientists

Rich Abdill

Rich Abdill, Ph.D.

Senior Data Scientist

✉ rabdill ~ uchicago.edu

Rich is interested in analysis of large-scale publicly available data to learn about global variation in the microbiome. As a lab manager, he is leading our work on the Human Microbiome Compendium. Rich received his PhD in Bioinformatics and Computational Biology from the University of Minnesota in 2022, and holds a B.A. in print journalism from the University of Maryland.

Marco Rossi

Marco Rossi, Ph.D.

Bioinformatician

✉ mrossi3 ~ uchicago.edu

Marco joined the lab in 2023 as a bioinformatician as part of the Host-Microbe Research Core in the Center for Interdisciplinary Study of Inflammatory Intestinal Disorders (C-IID). Marco holds a Ph.D. in Integrated Biomedical Sciences from Rush University Graduate College.

Postdoctoral Associates

Mark Swanson

Mark Swanson, Ph.D.

Postdoctoral Associate

NSF Postdoctoral Research Fellow
✉ zrw5436 ~ uchicago.edu

Mark is interested in the co-evolution of hosts and their microbial communities, and his research focuses on using wild mammals as a model for understanding the mechanisms controlling this symbiotic relationship. Mark joined the lab in 2021 after completing a Ph.D. in Biological Sciences at Louisiana State University.

Pamela Ferretti

Pamela Ferretti, Ph.D.

Postdoctoral Associate

✉ pamela.ferretti ~ uchicago.edu

Pamela joined our lab in January 2023. Her research is focused on characterizing patterns of microbial transmission in mother-infant pairs and in social groups, both in human and animal hosts. Before joining the lab, Pamela completed her PhD at EMBL with Peer Bork.

Sambhawa Priya

Sambhawa Priya, Ph.D.

Postdoctoral Associate

Chicago DFI Fellow
✉ priyas ~ uchicago.edu

Sambhawa's research focuses on using machine learning approaches for understanding host-microbiome interactions. She uses large datasets, including omics data and electronic health records to shed light on links between the microbiome and disease. Sambhawa holds an M.S. degree in Computer Science from Lehigh University.

Lauren Gonsalves

Lauren Gonsalves, Ph.D.

Postdoctoral Associate

ITM TL1 Postdoctoral Fellow
✉ lgonsalves ~ uchicago.edu

Lauren joined our lab in 2025 after completing a PhD in microbiology at the University of Washington. Her research focuses on the interaction of the gut microbiome and bile acids, and she is co-mentored by Sonia Kupfer. Lauren holds a BS from the University of Minnesota.

Graduate Students

Ashwin Chetty

Ashwin Chetty

Graduate Student

Genetics, Genomics & Systems Biology
✉ achetty ~ uchicago.edu

Ashwin's research focuses on developing and applying machine learning techniques for integrating microbiome and host genomic data. He joined the lab in 2021 and holds a B.S. and M.S. in Computer Science from the University of Chicago.

Katja Della Libera

Katja Della Libera

Graduate Student

Ecology and Evolution
✉ katjadellalibera ~ uchicago.edu

Katja joined the lab in 2022. Her research focuses on understanding the ecology of the human gut microbiome and associated host cells using metabolic modeling approaches and genomic data. Katja holds a B.S. from Minerva University with a double major in Earth's Systems and Data Science.

JJ Colgan

JJ Colgan

Graduate Student

Molecular Metabolism & Nutrition Digestive Health T32 Fellow
✉ jjcolgan ~ uchicago.edu

JJ completed both a B.S. and M.S. at Loyola University Chicago, where he worked with Michael Burns examining the microbiome in Celiac disease. He is co-mentored by Eugene Chang.

Liz Gibbons

Liz Gibbons

Graduate Student

Genetics, Genomics & Systems Biology Genetic Mechanisms & Evolution T32 Fellow
✉ gibbonsliz ~ uchicago.edu

Liz joined the lab in 2023. She holds a BS in Plant Biology and Computational Math, Science, and Engineering from Michigan State University. At the Blekhman Lab, Liz works on integration of microbiome data and host single-cell genomic data.

Tess Brunner

Tess Brunner

MD-PhD Student

Microbiology — MSTP
✉ tbrunner ~ uchicago.edu

Tess is co-advised with Sam Light. She holds a BS from Wesleyan University and is interested in the evolutionary forces acting on the gut microbiome of patients undergoing medical treatment in different disease contexts.

Laura Xie

Laura Xie

Graduate Student

Pritzker School of Molecular Engineering
✉ lauraxie ~ uchicago.edu

Laura joined the lab in 2026. She uses machine learning and network approaches to uncover biological principles from large-scale microbiome and host genomic data. Prior to joining the lab, she developed computational pipelines for single-cell and bulk RNA sequencing at Weill Cornell and the Icahn Mount Sinai Precision Immunology Institute. She holds an M.S. in Computational Biology from Weill Cornell and a B.S. in Molecular, Cellular, Developmental Biology and Mathematics from UCLA.

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We are looking for researchers to join our group!

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Lab Alumni

Sabrina Arif

Sabrina Arif, Ph.D.

Graduate Student, 2021–2026

Google Scholar →
Kelsey Johnson

Kelsey Johnson, Ph.D.

Postdoctoral Associate, 2020–2025

Assistant Professor
University of Southern California

Lab website →
Samantha Graham

Samantha Graham, Ph.D.

Graduate Student, 2021–2025

Postdoctoral Fellow
Brigham and Women's Hospital

LinkedIn →
Mattea Allert

Mattea Allert, Ph.D.

Graduate Student, 2018–2024

Postdoctoral Associate
University of Minnesota

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Karen Tang, Ph.D.

Bioinformatician, 2014–2023

Laura Grieneisen

Laura Grieneisen, Ph.D.

Grand Challenges Postdoctoral Fellow, 2017–2022

Assistant Professor
Old Dominion University

Lab website →
Beth Adamowicz

Beth Adamowicz, Ph.D.

Postdoctoral Associate & Research Scientist, 2019–2022

Research Scientist, Microbiome Bioinformatics
Rebiotix, Inc.

LinkedIn →
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Amanda Muehlbauer, Ph.D.

Graduate Student, 2016–2022

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Gargi Dayama, Ph.D.

Postdoctoral Associate, 2016–2020

Computational Biologist
Boston Children's Hospital

LinkedIn →
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Michael Burns, Ph.D.

HHMI Postdoctoral Associate, 2013–2016

Associate Professor
Loyola University Chicago

Lab website →
Andres Gomez

Andres Gomez, Ph.D.

Postdoctoral Associate, 2014–2016

Associate Professor
University of Minnesota, Twin Cities

Faculty page →
Elise Morton

Elise Morton, Ph.D.

Postdoctoral Associate, 2014–2016

Assistant Professor
Fairleigh Dickinson University

Website →
Joshua Lynch

Joshua Lynch

M.S. Student, 2014–2015

Researcher
Insight Centre for Data Analytics