Cytotoxicity of interleukins (ILs) in IZ-CYP24 and IZ-VDRE cells.

<p>Cells were treated for 24 h with the tested compounds at concentrations ranging from 1 pg/mL to 100 ng/mL. Incubations were carried out in triplicates. The MTT assay was performed, and the absorbance was measured at 540 nm. Data are the means from three consecutive cell passages and are expressed as a percentage of the viability of the control cells.