Table 1. The clinical subtypes and molecular classification of breast cancer cell lines used in this study (adapted from references [24,25]).

Cell line	Classification / subtype	Tumorigenicity	Receptor expression
MDA-MB-231	Claudin low[24]; basal-like[25]	Tumorigenic	ER -, PR -, HER2 -
MCF-7	Luminal A[24,25]	Tumorigenic	ER +, PR +/-, HER2 -
ZR-75-1	Luminal B[24]; luminal A[25]	Tumorigenic	ER +, PR +/-, HER2 +/-
MCF-10A	Basal-like[25]	Non-tumorigenic	ER -, PR -, HER2 -

ER, estrogen receptor; PR, progesterone receptor; HER2, human epidermal growth factor receptor 2.