Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
SUBMITTER: Fei Ling Lim
PROVIDER: E-GEOD-2251 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Moggs J G JG Murphy T C TC Lim F L FL Moore D J DJ Stuckey R R Antrobus K K Kimber I I Orphanides G G
Journal of molecular endocrinology 20050401 2
Estrogen receptor (ER)-negative breast carcinomas do not respond to hormone therapy, making their effective treatment very difficult. The re-expression of ERalpha in ER-negative MDA-MB-231 breast cancer cells has been used as a model system, in which hormone-dependent responses can be restored. Paradoxically, in contrast to the mitogenic activity of 17beta-estradiol (E2) in ER-positive breast cancer cells, E2 suppresses proliferation in ER-negative breast cancer cells in which ERalpha has been r ...[more]