Brassicasterol 

Brassicasterol is a metabolite of Ergosterol and has cardiovascular protective effects. Brassicasterol exerts anticancer effects in prostate cancer through dual targeting of AKT and androgen receptor signaling pathways. Brassicasterol inhibits HSV-1 (IC₅₀=1.2 μM) and Mycobacterium tuberculosis. Brassicasterol also inhibits sterol δ 24-reductase, slowing the progression of atherosclerosis. Brassicasterol is also a cerebrospinal fluid biomarker for Alzheimer's disease^{[1][2][3][4][5][6]}.

Brassicasterol (10 μM; 24 h) downregulates dihydrotestosterone (DHT)-induced expression of androgen receptor (AR) and prostate-specific antigen (PSA) in LNCaP cells ^[4].
Brassicasterol (50 μM; 48 h) Arrests the cell cycle of LNCaP in the sub-G1 phase and induces cell apoptosis ^[4].
Brassicasterol (10 μM; 48 h) also inhibits LNCaP cell migration ^[4].
Brassicasterol (100 μg /mL; 48 h) In a 3D organoid model, it can inhibit AKT, and its inhibitory effect on AR-independent cancers and AR-dependent cell^[4].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

398.66

C₂₈H₄₆O

474-67-9

Solid

White to light yellow

C[C@H](C(C)C)/C=C/[C@@H](C)[C@H]1CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

• [1]. Yasuharu Yazawa, et al. Inhibitory effect of ergosterol on bladder carcinogenesis is due to androgen signaling inhibition by brassicasterol, a metabolite of ergosterol. J Nat Med. 2020 Sep;74(4):680-688.  [Content Brief]

  [2]. Sherif T S Hassan. Brassicasterol with Dual Anti-Infective Properties against HSV-1 and Mycobacterium tuberculosis, and Cardiovascular Protective Effect: Nonclinical In Vitro and In Silico Assessments. Biomedicines. 2020 May 24;8(5):132.  [Content Brief]

  [3]. Yinzhu Xu, et al. Brassicasterol from Edible Aquacultural Hippocampus abdominalis Exerts an Anti-Cancer Effect by Dual-Targeting AKT and AR Signaling in Prostate Cancer. Biomedicines. 2020 Sep 22;8(9):370.  [Content Brief]

  [4]. Vanmierlo T, et al. The plant sterol brassicasterol as additional CSF biomarker in Alzheimer's disease. Acta Psychiatr Scand. 2011 Sep;124(3):184-92.  [Content Brief]

  [5]. Fernández C, et al. Inhibition of cholesterol biosynthesis by Delta22-unsaturated phytosterols via competitive inhibition of sterol Delta24-reductase in mammalian cells. Biochem J. 2002 Aug 15;366(Pt 1):109-19.  [Content Brief]

  [6]. Tansley G, et al. Sterol lipid metabolism in down syndrome revisited: down syndrome is associated with a selective reduction in serum brassicasterol levels. Curr Gerontol Geriatr Res. 2012;2012:179318.  [Content Brief]