We describe a relatively simple method for ex vivo live imaging of the tumor cell-stroma interactions within lung metastasis, utilizing fluorescent reporters in mice. Using spinning-disk confocal microscopy, this technique enables visualization of live cells for at least 4 hr and could be adapted to study other inflammatory lung conditions.
van den Bijgaart, R. J., Kong, N., Maynard, C., Plaks, V. Ex vivo Live Imaging of Lung Metastasis and Their Microenvironment. J. Vis. Exp. (108), e53741, doi:10.3791/53741 (2016).