Hormonal Therapy Sensitivity Markers

Anti-estrogen, Aromatase Inhibitor, and Progestin Sensitivity Markers
Marker Name Biological Role Evidence References
ER Estrogen receptor, alpha Estrogen-activated transcription factor that increases expression of genes involved in proliferation and survival High protein expression is correlated with good response to tamoxifen, fulvestrant, letrozole, and anastrozole in ovarian cancer
ER expression is correlated with response to MPA in ovarian cancer
Anti-Estrogen and Aromatase inhibitor sensitivity:ER references
Progestin sensitivity: PR reference
PR Progesterone receptor Progesterone-activated transcription factor that increases expression of genes involved in cellular differentiation and apoptosis High protein expression is correlated with good response and increased survival following aromatase inhibitor treatment in breast cancer
High protein expression is correlated with response to medroxy-progesterone acetate (MPA) in ovarian cancer
Aromatase inhibitor sensitivity:PR reference
Progestin sensitivity: PR reference