Cytotoxic Effect of Ethanol Extract of Microalga, Chaetoceros calcitrans, and Its Mechanisms in Inducing Apoptosis in Human Breast Cancer Cell Line

Table 2

IC50 of EEC and Tamoxifen on MCF-7 cells.

	IC50 (μg/mL)
	24 hour	72 hour
EEC treated MCF-7	3.00±0.65	2.69±0.24
EEC treated MCF10A	12.00±0.59	3.30±0.36
EEC treated PBMC	>30	>30
Tamoxifen treated MCF-7	12.00±0.52	9.00±0.40

Values are expressed as mean ± S.E. from triplicate.