Genistin (Genistine), an isoflavone belonging to the phytoestrogen family, is a potent anti-adipogenic and anti-lipogenic agent. Genistin attenuates cellular growth and promotes apoptotic cell death breast cancer cells through modulation of ERalpha signaling pathway^[1][2][3].

Genistin causes negative regulation of ERα. Genistin also effectively down-modulates ER nuclear translocation as well DNA binding activity in breast cancer cells. Moreover, GS effectively induced apoptosis and suppressed levels of oncogenic markers in MCF-7 cells^[3].

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

432.38

C₂₁H₂₀O₁₀

529-59-9

染料木苷；染料木甙

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 100 mg/mL (231.28 mM)

* “≥” means soluble, but saturation unknown.

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用； 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

• 1.

  请依序添加每种溶剂：;10% DMSO ;; 40% PEG300 ;; 5% Tween-80 ;; 45% saline

  Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.78 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂：;10% DMSO ;; 90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.78 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂：;10% DMSO ;; 90% corn oil

  Solubility: ≥ 2.5 mg/mL (5.78 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (5.78 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Choi YR, et al. Genistin: A Novel Potent Anti-Adipogenic and Anti-Lipogenic Agent. Molecules. 2020;25(9):2042. Published 2020 Apr 27.

  [2]. Liang Y, et al. A Comprehensive Screening and Identification of Genistin Metabolites in Rats Based on Multiple Metabolite Templates Combined with UHPLC-HRMS Analysis. Molecules. 2018;23(8):1862. Published 2018 Jul 26.

  [3]. Hwang ST, et al. Genistin attenuates cellular growth and promotes apoptotic cell death breast cancer cells through modulation of ERalpha signaling pathway [published online ahead of print, 2020 Oct 16]. Life Sci. 2020;263:118594.

M14 human melanoma cells are used and grown in RPMI containing 10% fetal calf serum, 100 U/mL penicillin, 100 μg/mL streptomycin, and 25 μg/mL fungizone. After 24 h of incubation at 37°C under a humidified 5% carbon dioxide to allow cell attachment, the cells are treated with different concentrations (12, 25, 50, and 100 μM) of Genistin and daidzin, and incubated for 72 h under the same conditions^[1].

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

Sprague-Dawley rats (male, 250 to 300 g) are used to establish the I/R injury animal model and used in this experiment. Rats are randomly apportioned in equal animals (n=10) to five experimental groups: (1) sham group: rats are subjected to the entire surgical procedure but without the induction of I/R; (2) model group: I/R injury animal model is constructed by left anterior descending coronary artery (LAD) ligation for 30 min, and then the LAD is allowed 1 h reperfusion; and (3) three Genistin-treated groups: different doses (20, 40, and 60 mg/kg body weight, resp.) of Genistin dissolved in 0.5% sodium carboxyl methyl cellulose (CMC-Na) solution are given intragastrically for 5 days before operation^[2].

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

• [1]. Choi YR, et al. Genistin: A Novel Potent Anti-Adipogenic and Anti-Lipogenic Agent. Molecules. 2020;25(9):2042. Published 2020 Apr 27.

  [2]. Liang Y, et al. A Comprehensive Screening and Identification of Genistin Metabolites in Rats Based on Multiple Metabolite Templates Combined with UHPLC-HRMS Analysis. Molecules. 2018;23(8):1862. Published 2018 Jul 26.

  [3]. Hwang ST, et al. Genistin attenuates cellular growth and promotes apoptotic cell death breast cancer cells through modulation of ERalpha signaling pathway [published online ahead of print, 2020 Oct 16]. Life Sci. 2020;263:118594.