*2.1. Reagents*

3,4,5-Dimethylthiazol-2,5-diphenyl-tetrazolium bromide (MTT), carboxy-2 ,7 -dichloro-dihydrofluorescein diacetate (DCFH-DA), dimethyl sulfoxide (DMSO) were acquired from Sigma (Madrid, Spain). Dulbecco's Modified Eagle's Medium (DMEM), penicillin/streptomycin (5000 U/mL), phosphate buffered saline (PBS) and trypsin/EDTA solution (170,000 U/L) were purchased from Lonza (Madrid, Spain). Fetal bovine serum (FBS) of South American origin (Hyclone, GE Healthcare, Logan, UK) was obtained from Thermo Scientific (Madrid, Spain). Cell culture dishes were obtained from Sarstedt (Barcelona, Spain).
