Michael D. Iglesia, MD, PhD

Michael D. Iglesia, MD, PhD


Division of Oncology
Mail Stop 8056-0029-11
Washington University
660 South Euclid Avenue
St. Louis, MO 63110

11th Floor Mid Campus Center (office)

Nicole Elder

Clinical Interests
  • Gastrointestinal and hepatobiliary cancers
Research Interests
  • Tumor microenvironment
  • Cancer genomics

Advances in the treatment of solid tumors are dependent on our understanding of their intricate substructure and how tumors relate to their environment. My research is focused on applying bulk and single-cell RNA sequencing as well as spatial transcriptomic profiling to better understand tumor substructure. In particular, I focus on the relation between tumor cells and normal cells across different tissue types, and how these foster the growth and spread of cancers. My current focus is applying these methods to better understand the spread of metastatic colorectal cancer. My ongoing goal is to continue genomic research in gastrointestinal malignancies, using single-cell and spatial multi-omics to deconstruct the interplay between tumor cells and their microenvironment, with an eye towards identifying cell types and programs that can be targeted in phase I clinical trials.



  • 2017-2009: MD/PhD in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, NC
  • 2008-2005: BS in Chemistry and Mathematics with Honors, Guilford College, Greensboro, NC

Post-Graduate Training

  • 2022-2019: Fellowship, Hematology and Oncology, Barnes-Jewish Hospital/Washington University, St. Louis, MO
  • 2019-2017: Residency, Internal Medicine, Barnes-Jewish Hospital/Washington University, St. Louis, MO

Academic Positions

  • present-2022: Instructor, Division of Oncology, Washington University, St. Louis, MO

Board Certification

  • 2023: American Board of Internal Medicine, Board Certified in Medical Oncology
  • 2020: American Board of Internal Medicine, Board Certified in Internal Medicine

Honors & Awards

  • 2022: Selected Participant, ASCO/AACR Methods in Clinical Cancer Research Workshop
  • 2017-2012: Individual Predoctoral MD/PhD Fellowship-F31, NCI
  • 2017-2010: John B. Graham Research Society
  • 2014: MD/PhD Conference Travel Award
  • 2014: San Antonio Breast Cancer Symposium Clinical Scholars Award
  • 2011-2009: University Cancer Research Fund Scholarship

Editorial Positions

  • present-2021: Associate Editor, theMednet (GI oncology section)

Professional Societies & Organizations

  • present-2019: American Society of Clinical Oncology
  • present-2019: American Association for Cancer Research
  • present-2017: American College of Physicians
  • present-2017: American association of Physician Scientists