Target cell - substratum interaction. I. Effect of primed lymphocytes on a rat mammary adenocarcinoma tumor cell line.

The differential effects of normal and immunologically primed lymphocytes on the adherence of trypsinized rat mammary adenocarcinoma tumor cells (DMBA"8) to their substratum are described, utilizing both allogeneically and syngeneically primed lymphoid cells as effectors. This observation may illustrate an important immunological phenomenon, and may result in a simplified assay procedure for the detection of cell-mediated immunity.