Name | R-Equol |
Synonyms | R-Equol Isoequol (R)-Equol Exclusive (3R)-3,4-Dihydro-3-(4-hydroxyphenyl)-2H-1-benzopyran-7-ol |
CAS | 221054-79-1 |
Molecular Formula | C15H14O3 |
Molar Mass | 242.27 |
Storage Condition | Room Temprature |
In vitro study | (R)-Equol is an agonist of both ERα and ERβ with K i s of 27.4 and 15.4 nM, respectively. (R)-Equol induces a dose-dependent inhibitory effect on the invasive capacity of MDA-MB-231 cells that is significant at the highest concentration tested (50 μM). Following 48-h exposure to (R)-Equol, invasion is reduced by 62% (p=0.009, versus untreated cells) with 50 μM (R)-Equol. Matrix metalloproteinase-2 (MMP-2) expression is significantly down-regulated following treatment with 50 μM (R)-Equol (p=0.035). |
In vivo study | Animals fed (R)-Equol have a significantly reduced number of palpable tumors over time when compare with Controls (P=0.002). Furthermore, the number of palpable tumors formed per rat in the (R)-Equol-fed group is significantly lower than that of rats treated with S-(-)equol (P=0.008). (R)-Equol-fed animals have 43% fewer tumors than the control group and this difference is highly statistically significant (P=0.004). The number of tumors/tumor-bearing animal is significantly lower in the animals fed (R)-Equol compare with Controls (3.3±0.4 versus 5.5±0.5, P=0.004). At necropsy, the mean (±SEM) tumor weight per animal for (R)-Equol fed rats (5.3±1.1 mg) is significantly reduced (P=0.04) when compare with Controls (9.9±1.4 mg). Feeding the (R)-Equol diet results in significantly increased tumor latency (P=0.003). |
biological activity | (R)-Equol is an agonist of ERα and ERβ, ki values were 27.4 and 15.4 nM, respectively. |
Target | Ki: 27.4 nM (ERα), 15.4 nM (ERβ) |