Stephanie Markovina, MD, PhD

Principal Investigator
Assistant Professor of Radiation Oncology


  • Baccalaureate, Biology: Washington University in St. Louis, St. Louis, MO (2001)
  • PhD, Cellular and Molecular Biology: University of Wisconsin Madison, Madison, WI (2008)
  • MD: University of Wisconsin School of Medicine & Public Health, Madison, WI (2010)
  • Internship: Medical College of Wisconsin, Milwaukee, WI (2011)
  • Residency, Radiation Oncology: Barnes-Jewish Hospital/Washington University School of Medicine, St. Louis, MO (2015)

Dr. Markovina is a board certified radiation oncologist specializing in the treatment of gynecologic cancers and thyroid cancer.  She has a long-standing passion for translational research and is building the lab to study critical signaling mechanisms that make some cancers resistant to therapy.

Arlise Andress, PhD

Post-Doctoral Research Associate

BA, Biology (Specialization in Molecular Biology):  The University of Chicago, Chicago IL (2004)

PhD, Interdepartmental Biological Sciences:  Northwestern University,  Evanston IL (2015)

Liyun (Michelle) Chen, PhD

Post-Doctoral Research Associate

MSc, Biochemistry and Molecular Biology: National Cheng Kung University, Taiwan (2015)

PhD, Cell and Tissue Engineering: Keele University, UK (2019)

Marlene Campos Guerrero

Graduate Student Researcher

Marlene Campos Guerrero is a first-generation Latina graduate student in the Cancer Biology Program at Washington University in St. Louis. She earned her B.S. in Microbiology from Kansas State University in 2019.

Marlene is interested in using an interdisciplinary and holistic approach to develop improved technologies for detection and treatment of cervical cancer. In addition to labwork, Marlene is interested in bridging the gap between the scientific community and the public with an interest in science communication and outreach.

Aaron Silvus

Medical Physics PhD Program Student

Aaron is a PhD student in the Medical Physics program co-mentored by Dr. Stephanie Markovina and Dr. Michael Altman at Washington University in St. Louis. He earned his B.S. in Physics at Missouri University of Science and Technology in 2019 and a Master of Science in Medical Physics at Washington University in St. Louis in 2022.

Aaron is currently focusing on developing a preclinical cell irradiator platform to be used with a clinical high dose rate (HDR) brachytherapy afterloader. A goal of his project is to investigate abscopal effects arising from the combination of brachytherapy and immunotherapy.

Victoria Shi

Lab Technician and BioSURF Fellowship Awardee

Shreya Kuchipudi

Undergraduate Researcher

Shreya Kuchipudi is an undergraduate student at WashU, majoring in Biology (in the Neuroscience track) and pursuing a minor in Women, Gender, and Sexuality Studies. She hopes to attend medical school after completing her undergraduate studies.

Sarah Govert

Undergraduate Researcher

Sarah Govert is an undergraduate at Washington University in St. Louis majoring in Biology with a focus in Computational Biology and Genomics and minoring in Bioinformatics. She hopes to attend medical school after graduation.

Jasmine Yang

Undergraduate Researcher

Jasmine is an undergraduate student at WashU studying Neuroscience with a minor in Environmental Earth Science. She hopes to attend medical school after graduation.

Ethan Memming

Undergraduate Researcher

I’m a senior undergraduate here at WashU studying chemistry with a focus in biochemistry, and minoring in mathematics. I started in the Markovina lab in the Fall of 2022, and I’m taking a gap year after graduating to research and help aide my decision between graduate or medical school.

Lena Zein

Administrative Assistant

I was born in Lebanon and raised in several different countries as my parents loved to travel. I enjoy diversity and meeting people from all over the world. St. Louis is my home and I love everything about it. I graduated from the American College in London with a B.S. in Business Administration and a minor in Managing Information Systems.  In my free time, I love to read, write, socialize with people and travel/discover different parts of the world. I have worked as an Administrative Assistant for 22 years and I enjoy and love being able to make life easier for others. Making a difference in life in any form is my main goal and objective.

Former Lab Members

Alexander Cohen, MD

Gynecologic Oncology Surgery Fellow

Rebecca Freeman

Undergraduate Student

Songyan Wang, MD, PhD

Senior Scientist

Jonathan Moore

Post-baccalaureate Research Assistant

Paris Limberatos

Undergraduate Student