Gigantol isomer-1 is a bibenzyl compound derived from Dendrobium nobile. Gigantol isomer-1 shows promising therapeutic potential against cancer cells. Gigantol isomer-1 is a novel inhibitor of the Wnt/β-catenin pathway.

Wnt^[1]

Gigantol isomer-1 decreases the level of phosphorylated LRP6 and cytosolic β-catenin in HEK293 cells. In breast cancer MDA-MB-231 and MDA-MB-468 cells, treatment with Gigantol isomer-1 reduces the level of phosphorylated LRP6^[1]. Gigantol isomer-1 significantly inhibits the proliferation and induces apoptosis of the HepG2 cells. Gigantol isomer-1 at concentrations of 1, 40 and 150 μM markedly decreases the cell viability by 11.7, 30.0 and 56.4% at 24 h and 21.1, 66.8 and 85.5% at 48 h, respectively. The IC₅₀ value is 9.30 μM^[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

LDD and Gigantol isomer-1 (25–100 mg/kg, p.o.) significantly increase the hot-plate latency in comparison to vehicle-treated mice and decreased carrageenaninduced inflammation in rats^[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

274.31

C₁₆H₁₈O₄

67884-30-4

固体

White to off-white

• Phenols
• Polyphenols

• 植物
• 兰科
• 石斛

Room temperature in continental US; may vary elsewhere.

DMSO 中的溶解度 : ≥ 100 mg/mL (364.55 mM; 吸湿的 DMSO 对产品的溶解度有显著影响，请使用新开封的 DMSO)

Ethanol 中的溶解度 : 50 mg/mL (182.28 mM; 超声助溶)

* “≥” 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。

• 方案 一

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

  Solubility: ≥ 2.5 mg/mL (9.11 mM); 澄清溶液

  此方案可获得 ≥ 2.5 mg/mL（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；再向上述体系中加入 50 μL Tween-80，混合均匀；然后再继续加入 450 μL 生理盐水 定容至 1 mL。

  生理盐水的配制：将 0.9 g 氯化钠，溶解于 ddH₂O 并定容至 100 mL，可以得到澄清透明的生理盐水溶液。

• 方案 二

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

  Solubility: ≥ 2.5 mg/mL (9.11 mM); 澄清溶液

  此方案可获得 ≥ 2.5 mg/mL（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。

  20% SBE-β-CD in Saline 的配制（4°C，储存一周）：2 g SBE-β-CD（磺丁基醚 β-环糊精）粉末定容于 10 mL 的生理盐水中，完全溶解至澄清透明。

• 方案 三

  请依序添加每种溶剂： 10% DMSO    90% Corn Oil

  Solubility: ≥ 2.5 mg/mL (9.11 mM); 澄清溶液

  此方案可获得 ≥ 2.5 mg/mL（饱和度未知）的澄清溶液，此方案实验周期在半个月以上的动物实验酌情使用。

  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]. Yu S, et al. Gigantol inhibits Wnt/β-catenin signaling and exhibits anticancer activity in breast cancer cells. BMC Complement Altern Med. 2018 Feb 14;18(1):59.  [Content Brief]

  [2]. Chen H, et al. Gigantol attenuates the proliferation of human liver cancer HepG2 cells through the PI3K/Akt/NF-κB signaling pathway. Oncol Rep. 2017 Feb;37(2):865-870.  [Content Brief]

  [3]. Déciga-Campos M, et al. Antinociceptive and anti-inflammatory effects of compounds isolated from Scaphyglottis livida and Maxillaria densa. J Ethnopharmacol. 2007 Nov 1;114(2):161-8.  [Content Brief]

HepG2 cells are treated with a series of concentrations of Gigantol (1, 10, 40, 80 and 150 µM) for different time intervals (12, 24 and 48 h). The cytotoxicity is measured using MTT assays^[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Rats^[3]

The anti-inflammatory activity is determined by carrageenan-induced edema test in the hind paws of rats. Sprague-Dawley rats are fasted for 15 h before the experiment with free access to water. One hundred microlitres of 1% carrageenan (10 mg/mL, Type IV, lambda) suspension is prepared 30 min before each experiment and injected into the plantar side of right hindpaw of the rats. The CH₂Cl₂-MeOH Scaphyglottis livida and Maxillaria densa extracts (150-600 mg/kg), as well as compound LDD and gigantol (25-100 mg/kg), are orally administered. The extracts, LDD and gigantol are administered 1 h before the carrageenan treatment^[3].

Mice^[3]

Mice receive an oral administration of vehicle (0.2% Tween-80) or increasing doses of Scaphyglottis livida and Maxillaria densa extracts (150–600 mg/kg) or LDD and gigantol (25-100 mg/kg) 30 min before the thermal noxious stimuli in the hot-plate test. Morphine (1.5-6 mg/kg, p.o.) is used as positive control. Mice are observed before and at 30, 60, 90 and 120 min after drugs administration^[3].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Yu S, et al. Gigantol inhibits Wnt/β-catenin signaling and exhibits anticancer activity in breast cancer cells. BMC Complement Altern Med. 2018 Feb 14;18(1):59.  [Content Brief]

  [2]. Chen H, et al. Gigantol attenuates the proliferation of human liver cancer HepG2 cells through the PI3K/Akt/NF-κB signaling pathway. Oncol Rep. 2017 Feb;37(2):865-870.  [Content Brief]

  [3]. Déciga-Campos M, et al. Antinociceptive and anti-inflammatory effects of compounds isolated from Scaphyglottis livida and Maxillaria densa. J Ethnopharmacol. 2007 Nov 1;114(2):161-8.  [Content Brief]