Staff Collaborate Conference Room

Hallgeir Rui, MD, PhD

Hallgeir Rui, MD, PhD

Hallgeir Rui, MD, PhD

WBCS Endowed Professor of Breast Cancer Research; Director, MCW Tissue Bank; Professor and Vice Chair of Research, Pathology


  • Pathology & Laboratory Medicine

Contact Information

General Interests

Breast Cancer Research


MD, University of Oslo, Oslo, Norway
PhD, Pathology, University of Oslo, Oslo, Norway


Hallgeir Rui, MD, PhD is internationally recognized for his research on hormone signaling in breast cancer, and has a strong track record of leadership, mentoring and collaboration. He is the WBCS Endowed Professor of Breast Cancer Research at the Medical College of Wisconsin (MCW), with his primary appointment in the Department of Pathology, and a secondary appointment to the Department of Pharmacology & Toxicology. In addition, Dr. Rui serves as the Associate Director of Basic Science and Shared Resources at the MCW Cancer Center. With his past experience as a Program Leader and Shared Resource Director at the NCI-designated Sidney Kimmel Cancer Center at Thomas Jefferson University, Dr. Rui brings valuable experience to the MCW Cancer Center efforts toward NCI-designation. Dr. Rui serves on the Breast Cancer Translational Research Committee of NRG Oncology.

Research Interests

Breast Cancer

Cytokine receptors

Hormones: Estrogen, growth, glucocorticoid, steroid


Prolactin and Prolactin receptors

Jak2, Stat5, Stat5a, Stat5b




Early detection

Tissue microarray

Mouse modeling

EGFR, Her2, ErbB2