The goal of these experiments is to generate quantitative time-course data on the growth and gene expression dynamics of attenuated S. typhimurium bacterial colonies growing inside tumors. This video covers tumor cell preparation and implantation, bacteria preparation and injection, whole-animal luminescence imaging, tumor excision, and bacterial colony counting.
Danino, T., Prindle, A., Hasty, J., Bhatia, S. Measuring Growth and Gene Expression Dynamics of Tumor-Targeted S. Typhimurium Bacteria. J. Vis. Exp. (77), e50540, doi:10.3791/50540 (2013).