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Fibronectin had no effect on intracellular doxorubicin content. Jurkat (A) and HSB2 (B) cells were preactivated or not with collagen (Col) or fibronectin (Fn) before the addition of doxorubicin. The cells were then washed with PBS, and the intracellular doxorubicin content was quantified by flow cytometry. The results represent mean values ± SD from three independent experiments. *p < 0.05 where indicated.
