Dr. Hillary Stires is a postdoctoral fellow training in the Tumor Biology program funded through a T32 Ruth L. Kirschstein National Research Service Award at Georgetown University Lombardi Comprehensive Cancer Center under the mentorship of Dr. Rebecca Riggins. Dr. Stires received her PhD from Rutgers University in Endocrinology and Animal Biosciences and has always been interested in how steroid hormones (specifically estrogen) influence breast cancer development. In Dr. Riggins lab, Hillary’s work focuses on the endocrine resistance in breast cancer. She uses cell culture models of endocrine resistance to compare resistant and parental cell lines, which are then compared with clinical data to ensure clinical relevance. At Georgetown, Hillary initiated the re-establishment of the Georgetown Postdoc Association to foster camaraderie and organize career development activities specifically geared towards postdocs. During the summer of 2019, Dr. Stires will Chair the Hormone-Dependent Cancers Gordon Research Conference. Additionally, Dr. Stires interacts with other scientists, medical oncologists, and patient advocates to improve science communication. She tweets weekly with the group #BCSM (breast cancer social media) to help provide evidence-based education and support for people affected by breast cancer. She became a Gibco Cell Culture Hero December 2018.