Clinical Focus

  • Gynecologic Oncology

Professional Education

  • Medical Education: Baylor College of Medicine (2011) TX
  • Board Certification: American Board of Obstetrics and Gynecology, Gynecologic Oncology (2021)
  • Board Certification: American Board of Obstetrics and Gynecology, Obstetrics and Gynecology (2019)
  • Residency: Baylor College of Medicine Obstetrics and Gynecology Residency (2015) TX
  • Fellowship: Stanford University Gynecologic Oncology Fellowship (2018) CA

All Publications

  • Statistical algorithms improve accuracy of gene fusion detection. Nucleic acids research Hsieh, G., Bierman, R., Szabo, L., Lee, A. G., Freeman, D. E., Watson, N., Sweet-Cordero, E. A., Salzman, J. 2017


    Gene fusions are known to play critical roles in tumor pathogenesis. Yet, sensitive and specific algorithms to detect gene fusions in cancer do not currently exist. In this paper, we present a new statistical algorithm, MACHETE (Mismatched Alignment CHimEra Tracking Engine), which achieves highly sensitive and specific detection of gene fusions from RNA-Seq data, including the highest Positive Predictive Value (PPV) compared to the current state-of-the-art, as assessed in simulated data. We show that the best performing published algorithms either find large numbers of fusions in negative control data or suffer from low sensitivity detecting known driving fusions in gold standard settings, such as EWSR1-FLI1. As proof of principle that MACHETE discovers novel gene fusions with high accuracy in vivo, we mined public data to discover and subsequently PCR validate novel gene fusions missed by other algorithms in the ovarian cancer cell line OVCAR3. These results highlight the gains in accuracy achieved by introducing statistical models into fusion detection, and pave the way for unbiased discovery of potentially driving and druggable gene fusions in primary tumors.

    View details for DOI 10.1093/nar/gkx453

    View details for PubMedID 28541529