Cultured in RPMI1640 (Life Technologies GIBCO BRL, Grand Island, NY, USA
Cultured in RPMI1640 (Life Technologies GIBCO BRL, Grand Island, NY, USA) supplemented with 10 heatinactivated fetal calf serum (FCS, Hyclone, Logan, Utan, USA) and antibiotics (penicillin one hundred U/ml, streptomycin…