Abstract 2816: Comparison of MB-49ₗuc bladder carcinoma cell clones in the orthotopic superficial bladder tumor model in C57BL/6 female mice

Abstract In preclinical research, cell inoculation via bladder wall injection is a standard for studying invasive bladder cancer into the bladder muscle wall. However, a subset of patients presents with non-muscle invasive (superficial) disease. The standard of care for these patients is excision coupled with BCG treatment via catheterization. There is a need to further establish mouse models of cell inoculation via bladder catheterization for early drug development. While the injection places cells into the bladder wall, catheterization coats the inside of the bladder by first instilling Poly-L-Lysine. After instilling Poly-L-Lysine, instillation of luciferase-tagged cell suspension occurs. MB49-luc cell lines were generated to determine the optimal cell lines for use in analyzing treatments for superficial bladder carcinoma. MB49-luc cells display varying degrees of luciferase activity and growth in vitro. A subset of cell lines were selected for further analysis in vivo, via bioluminescent imaging, survival analysis, flow cytometry and necropsy. The data provides a preclinical reference for the selection of a cell line for analysis of new drug candidates in C57BL/6 female mice inoculated via bladder catheterization. Citation Format: Mollie McArthur, Melissa Tran, Aliccia Koznecki, Helen Ketteringham, Corrine Silvio, Shannan Wenzel, Cheryl Davis, Shorena Nadaraia-Hoke, Chris Holding, Logan Salem, Victoria Caruso, Ben Hoerner, Madison Spencer, Marcus Josey, Alexa Tannu. Comparison of MB-49ₗuc bladder carcinoma cell clones in the orthotopic superficial bladder tumor model in C57BL/6 female mice abstract. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts) ; 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84 (6Suppl): Abstract nr 2816.