Sheila Stewart, PhD

Sheila Stewart, PhD

Primary Academic Title

Professor of Cell Biology and Physiology, Washington University School of Medicine.

Research Interest

Cellular immortality is one of the defining characteristics of malignant growth. Therefore, understanding how cellular lifespan is controlled at the molecular level is a central theme in the laboratory. The telomere, a DNA-protein structure located at the termini of linear chromosomes, plays a central role in controlling cellular mortality. Therefore, we are particularly interested in understanding how it is maintained. In addition, delineating the signal transduction machinery that is responsible for monitoring the telomere and eliciting modifications of the telomere is of critical importance to understanding how incipient cancer cells obtain immortality.

Education

  • 1996: PhD, microbiology and immunology, University of California, Los Angeles

Training

  • 1996 - 1998: Postdoctoral fellow, University of California, Los Angeles
  • 1998 - 2003: Postdoctoral fellow, Whitehead Institute for Biomedical Research, Cambridge, Mass.

Selected Research Publications

Chemotherapy-induced adipo-lineage cell senescence drives bone loss.
  • Raut GK, Malachowski T, Melam A, [...] Stewart SA
  • Nat Commun 2025
Stromal senescence contributes to age-related increases in cancer.
  • Ye J, Melam A, Stewart SA
  • Nat Rev Cancer 2025
Age-related mesenchymal stromal cell senescence is associated with progression from MGUS to multiple myeloma.
  • Plakhova N, Panagopoulos V, Cantley MD, [...] Stewart SA, [...] Vandyke K
  • Leukemia 2025
Stroma-derived Dickkopf-1 contributes to the suppression of NK cell cytotoxicity in breast cancer.
  • Lee S, Ricci B, Tran J, [...] Stewart SA, [...] Faccio R
  • Nat Commun 2025
Senescent CAFs Mediate Immunosuppression and Drive Breast Cancer Progression.
  • Ye J, Baer JM, Faget DV, [...] Stewart SA
  • Cancer Discov 2024

View All Publications