PT - JOURNAL ARTICLE AU - HANCOCK, BRYAN M. AU - MCGUIRE, KATHLEEN L. AU - TSUJI, SHINGO AU - REIL, KATHERINE AU - HERNANDEZ, VERONICA AU - GIACALONE, MATTHEW J. AU - GODBEY, W. T. TI - A Single Intravesical Instillation of VAX014 Inhibits Orthotopic Superficial Bladder Tumor Implantation to Increase Survival DP - 2016 Dec 01 TA - Anticancer Research PG - 6243--6248 VI - 36 IP - 12 4099 - http://ar.iiarjournals.org/content/36/12/6243.short 4100 - http://ar.iiarjournals.org/content/36/12/6243.full SO - Anticancer Res2016 Dec 01; 36 AB - Background/Aim: VAX014 minicells (VAX014) have been previously characterized as an integrin-specific oncolytic biotherapeutic agent. The present study was designed to evaluate the potential of VAX014 as an immediate post-operative intravesical adjuvant therapy in the treatment of non-muscle invasive bladder cancer (NMIBC). Materials and Methods: The ability of VAX014 to kill a panel of dissociated urothelial carcinoma cell lines was tested in vitro. In vivo experiments were conducted using a single intravesical dose of VAX014 in the anti-implantation variation of the MB49 syngeneic orthotopic bladder cancer model with tumor implantation and overall survival rates serving as study endpoints. Results: VAX014 rapidly killed dissociated urothelial carcinoma cells, while single dose in vivo pharmacology studies demonstrated the dose-dependent ability of VAX014 to prevent tumor implantation and development, ultimately resulting in a significant survival advantage compared to controls. Conclusion: These results suggest that VAX014 holds potential as an immediate post-operative adjuvant therapy in NMIBC.