Purpose of Review
Urology residency positions have steadily increased but applications have remained stagnant. This is an alarming trend given the aging general population and thus increased need for urologists. The purpose of this review is to describe barriers and suggest strategies to encourage medical students to pursue urology.
Recent Findings
Barriers to interest in urology include educational factors, such as timing of exposure to urology in medical school, USMLE scores, research experience, and deciding in time for an early match, as well as socioeconomic barriers, such as cost, being underrepresented in medicine, and gender. Steps the urological community can take include increasing involvement in medical school curricula, increasing faculty mentor availability, and broadening students’ range of urological experiences.
Summary
Strategies to encourage interest in urology fall into three categories: creating interest, supporting interest, and removing barriers for students considering urology. Ultimately, the goal is to garner excellent residents in a field that must expand to meet the needs of a growing and aging population.
Background
Radical surgery is the first line treatment for localized prostate cancer (PC), however, several studies have demonstrated that surgical procedures induce tumor cell mobilization from the primary tumor into the bloodstream.
Methods
The number and temporal fluctuations of circulating tumor cells (CTC), cancer associated fibroblasts (CAF) and CTC cluster present in each blood sample was determined.
Results
The results show that both CTC and CTC cluster levels significantly increased immediately following primary tumor resection, but returned to baseline within 2 weeks post-surgery. In contrast, the CAF level decreased over time. In patients who experienced PC recurrence within months after resection, CTC, CAF, and cluster levels all increased over time. Based on this observation, we tested the efficacy of an experimental TNF-related apoptosis-inducing ligand (TRAIL)-based liposomal therapy ex-vivo to induce apoptosis in CTC in blood. The TRAIL-based therapy killed approximately 75% of single CTCs and CTC in cluster form.
Conclusion
Collectively, these data indicate that CTC cluster and CAF levels can be used as a predictive biomarker for cancer recurrence. Moreover, for the first time, we demonstrate the efficacy of our TRAIL-based liposomal therapy to target and kill prostate CTC in primary patient blood samples, suggesting a potential new adjuvant therapy to use in combination with surgery.
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