Fulvestrant has been used:as an antagonist of estrogen receptor (ER? and ER?) to reduce hepatocytes proliferationas an antagonist of ER for the suppression of estrogen responsive element in human breast cancer MCF-7 cellsas anti-estrogen in breast cancer cell lines
Biochem/physiol Actions
Fulvestrant is a 7?-alkylsulphinyl analog of 17?-oestradiol and is structurally different compared to other selective estrogen receptor (ER) modulators (SERMs). It reduces dimerization and nuclear localization of the estrogen receptor (ER). Fulvestrant lowers the level of ER protein in human breast cancer cells. Fulvestrant is preferred for the treatment of women at their menopause having hormone-sensitive advanced breast cancer.
Fulvestrant (ICI 182,780) is a selective estrogen receptor down-regulator (SERD). Fulvestrant is a high affinity estrogen receptor antagonist. IC50 = 0.29 nM. Fulvestrant is the first "pure" antiestrogen with no agonistic activity both in vitro and in vivo.
Features and Benefits
This compound was developed by AstraZeneca. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.
This compound is featured on the Nuclear Receptors (Steroids) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.