Figure 3.
The Matrigel assay. A novel approach to unravel the dynamics of CD4+ T cell-mediated primary anti-tumor immune responses. At day 0, subcutaneous injections with MOPC315 tumor cells suspended in liquid Matrigel. When the Matrigel solution reaches body temperature, it jellifies and forms a plug containing the tumor cells. At various time points after injection (n days), the Matrigel plug and tumor-draining lymph nodes are dissected out and analyzed ex vivo for cellular content, function of cells, and cytokines (34, 36, 39, 85).