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Expression levels of (A) TIMP1 and TIMP2 (B) IL1-α and IL1-β as determined by an ELISA-based antibody array, in the supernatant media harvested from the 1:1 co-cultures of tumor cells and 125I-labeled lymphocytes (T + 125I-sL) in which an inhibitory (antiproliferative) bystander effect was observed. Tumor cells and dead tumor cells (T + T[K]) were used as controls. Assays were repeated four times and the mean values ± SD of the mean (n = 2) from two independent experiments are shown.
