Amphotericin

HEK293T, MCF7, and C2C12 cells were grown in DMEM (Biochrom AG) supplemented with 10% fetal calf serum (FCS; Biochrom AG), 2 mM l-glutamine, and penicillin (100 U/ml)/streptomycin (10 µg/ml) (PAA Laboratories) at 37°C and 10% (C2C12) or 5% CO₂. Immortalized human myoblasts were cultured in skeletal muscle growth medium (Provitro) supplemented with supplement mix (Provitro), 50 ng/ml amphotericin, 50 µg/ml gentamicin, 10% FCS, 2 mM l-glutamine, and penicillin (100 U/ml)/streptomycin (10 µg/ml) at 37°C and 5% CO₂. hFOBs (1.19) were cultured in a 1:1 mixture of DMEM and Ham’s F12 medium supplemented with 10% FCS, 2 mM l-glutamine, penicillin (100 U/ml)/streptomycin (10 µg/ml), and 0.3 mg/ml G418 (Biochrom AG) at 34°C with 5% CO₂ to keep them in a proliferative state. HUVECs were a kind gift from M. Lorenz and V. Stangl (Charité Universitätsmedizin, Berlin, Germany) and cultured on gelatin-coated tissue culture ware in M199 medium supplemented with 20% FCS, 50 µg/ml endothelial cell growth supplement (Corning), 25 µg/ml heparin, 2 mM l-glutamine, and penicillin (100 U/ml)/streptomycin (10 µg/ml) at 37°C and 5% CO₂. HUVECs were used at passage 3 in all experiments. Unless stated otherwise, all cells were starved for 5 h prior to stimulation with their respective growth medium, without FCS supplement, containing 2 mM l-glutamine and penicillin/streptomycin.