Bioactivity | Win 18446 is an orally active testes-specific enzyme ALDH1a2 inhibitor, with an IC50 of 0.3 μM. Win 18446 reversibly inhibits spermatogenesis in many species and inhibits Retinoic acid (HY-14649) biosynthesis from Retinol (HY-B1342) within the testes[1][2]. |
Invitro | WIN 18446 (1 μM, 24 h) is able to suppress Stra8 expression in whole-testes cultures that contained both germ and somatic cells[2]. RT-PCR[2] Cell Line: |
In Vivo | Win 18446 (200 mg/kg, Orally for 4, 8, and 16 weeks) significantly reduces intratesticular concentrations of retinoic acid, severely impaired spermatogenesis, and caused infertility[1]. Animal Model: |
Name | Win 18446 |
CAS | 1477-57-2 |
Formula | C12H20Cl4N2O2 |
Molar Mass | 366.11 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, stored under nitrogen *In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen) |
Reference | [1]. John K Amory, et al. Suppression of spermatogenesis by bisdichloroacetyldiamines is mediated by inhibition of testicular retinoic acid biosynthesis. J Androl. Jan-Feb 2011;32(1):111-9. [2]. Cathryn A Hogarth, et al. Suppression of Stra8 expression in the mouse gonad by WIN 18,446. Biol Reprod. 2011 May;84(5):957-65. |