Here we present a protocol to co-culture in three-dimensions, which is useful for investigating multicellular interactions and extracellular matrix-dependent modulation of cancer cell behavior. In this experimental model, cancer cells are cultured on collagen gels embedded with human cancer-associated fibroblasts.
Horie, M., Saito, A., Yamaguchi, Y., Ohshima, M., Nagase, T. Three-dimensional Co-culture Model for Tumor-stromal Interaction. J. Vis. Exp. (96), e52469, doi:10.3791/52469 (2015).