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. 2021 Feb 5;10(2):243. doi: 10.3390/antiox10020243

Table 2.

IC50 (the concentration of compound that halves cell proliferation or viability) values of grape stem extracts on Caco-2, MCF-7, MDA-MB-231, and fibroblast cells after 72 and 48 h of incubation.

IC50 (µg/mL) 72 h IC50 (µg/mL) 48 h Selectivity Index
Caco-2 759 ± 51 661 ± 48 2.9
MCF-7 203 ± 53 817 ± 52 * 7.2
MDA-MB-231 85 ± 9 911 ± 10 * 17.0
Fibroblast 1454 ± 6 - -

* p < 0.05; incubation time 48 vs. 72 h.