Table 1.

Summary of results for PEITC-induced growth inhibition

Cell line	Status			IC50 (μM)c
	ERa	PRb	HER2
MDA-MB-231	−ve	−ve	Normal	7.2 ± 1.4
T47D	+ve	+ve	Normal	9.2 ± 3.8
BT549	−ve	−ve	Normal	11.9 ± 7.3
MCF7	+ve	+ve	Normal	10.6 ± 1.4
SKBR3	−ve	−ve	Amplified	26.4 ± 2.1
ZR-75-1	+ve	−ve	Normal	40.4 ± 4.8

^aEstrogen receptor

^bProgesterone receptor

^cPEITC IC₅₀, mean ± SD derived from a minimum of three independent experiments