tokens: Transduction of the human leukemic cell line K562 showed that viral MRP1-PG13 supernatants routinely transfer the MRP1 gene to approximately 35 % of target K562 cells , of which at least one third are capable of proliferating in the presence of otherwise toxic concentrations of etoposide .
folded_tokens: transduction of the human leukemic cell line k562 show that viral mrp1-pg13 supernatant routinely transfer the mrp1 gene to approximately 35 % of target k562 cell , of which at least one third be capable of proliferate in the presence of otherwise toxic concentration of etoposide .