Fig. 2.

Inhibition of prostate cancer cell proliferation by treatment with ethanol extract of neem leaves (EENL). The antiproliferative effect of EENL on human prostate cancer cells C4-2B and PC-3M-luc2 was evaluated by using the MTS viability assay. The cells were treated for 24, 48, and 72 h with varying concentrations of EENL or vehicle as control. Experiments were performed in triplicate; data are expressed as the mean ± SD of the triplicate determinations of a representative experiment in % cell viability of untreated cells (100%). *p < 0.05