Table 1.

Tumors, primary cultures and cell lines used in the experiments in this paper

Source	Description	References
Tumors and primary cultures
HDTs	MMTV(LA)-induced HDTs growing in vivo	[24,25,31]
HITs	MMTV(LA)-induced HITs growing in vivo	[24,25,31]
TPC	Primary cultures derived from HITs
LM3 tumors	Poorly differentiated adenocarcinomas derived from LM3 cells implanted subcutaneously in BALB/c mice
Cell lines
LM3	Cell line established from a spontaneous mammary tumor in BALB/c mouse	[47]
LMM3	Cell line derived from a highly metastatic mammary tumor in BALB/c mouse	[47]
HC11	Normal mouse mammary epithelial cell line	[50,51]
SCP2	Normal mouse mammary epithelial cell line	[52]
NMuMG	Normal mouse mammary epithelial cell line	ATTC – CRL-1636™
MCF-7	Human ER+ breast cancer cell line	ATTC – HTB-22™

HDT, hormone-dependent tumor; HIT, hormone-independent tumor; TPC, tumor primary culture; MMTV, mouse mammary tumor virus; ER, estrogen receptor, ATCC^®, American Type Culture Collection Number.