Table 1. H₂O₂ sensitivity in breast cell lines.

Breast cell lines of various subtypes as indicated were analyzed for H₂O₂ sensitivity by MTT assay. The average IC₅₀ values determined from the dose-response curve of at least three independent experiments are shown as an average ± s.e.m. p-value was determined by student t-test relative to the normal-like cell lines

Cell Line	H2O2 IC50 (μM)	p-Value
Normal-like
MCF10A	1008 ± 14
MCF12A	700 ± 265
Luminal		0.0981
MCF7	550 ± 58
BT474	750 ± 129
T47D	500 ± 100
MDAMB361	483 ± 126
BRCA1		0.0094**
SUM149PT	95 ± 30
SUM1315MO2	192 ± 63
HCC1937	23 ± 12
MDAMB436	367 ± 58
Basal-like		0.0003**
BT549	13 ± 6
hs578T	150 ± 87
MDAMB231	333 ± 76
HCC38	20 ± 5
HCC1143	20 ± 10
HCC1806	50 ± 29
HCC1500	38 ± 37
MDAMB468	333 ± 58

^**p<0.01.