Iberin (NSC 321801), a sulfoxide analogue of sulforaphane, is a naturally occurring member of isothiocyanate family. Iberin inhibits cell survival with an IC₅₀ of 2.3 μM in HL60 cell. Iberin induces apoptosis.

Iberin inhibits the growth of neuroblastoma cells in a dose- and time-dependent manner. The iberin-induced cell cycle arrest in neuroblastoma cells is associated with inhibition of expression of cyclin-dependent kinase Cdk2, Cdk4, and Cdk6 proteins. There is an increase in apoptotic cell death in iberin treated cells as compared with control cells. The iberin-induced apoptosis is found to be associated with activation of caspase-9, caspase-3, and PARP^[2]. Iberin inhibits growth of human glioblastoma cells in cell proliferation assays, enhances cytotoxicity, and induces apoptosis by activation of caspase-3 and caspase-9^[3].

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

Iberin is tested in an in vivo foreign-body infection mouse model, and the results show no significantly difference in bacterial clearance between treated and nontreated miced^[4]. Iberin increases tissue levels of the phase II detoxification enzymes quinone reductase and glutathione S-transferase in a variety of rat tissues^[5].

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

163.26

C₅H₉NOS₂

505-44-2

液体

Colorless to light yellow

• Others

• 植物
• 其他科

• 内源性代谢物

Room temperature in continental US; may vary elsewhere.

Solution, -20°C, 2 years

DMSO 中的溶解度 : 100 mg/mL (612.52 mM; 超声助溶; 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 : 10 mg/mL (61.25 mM; 超声助溶)

• 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 (15.31 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 (15.31 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 (15.31 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]. Jakubikova J, et al. Isothiocyanates induce cell cycle arrest, apoptosis and mitochondrial potential depolarization in HL-60 and multidrug-resistant cell lines. Anticancer Res. 2005 Sep-Oct;25(5):3375-86.  [Content Brief]

  [2]. Jadhav U, et al. Iberin induces cell cycle arrest and apoptosis in human neuroblastoma cells.  [Content Brief]

  [3]. Jadhav U, et al. Dietary isothiocyanate iberin inhibits growth and induces apoptosis in human glioblastoma cells. J Pharmacol Sci. 2007 Feb;103(2):247-51.  [Content Brief]

  [4]. Jakobsen TH, et al. Food as a source for quorum sensing inhibitors: iberin from horseradish revealed as a quorumsensing inhibitor of Pseudomonas aeruginosa. Appl Environ Microbiol. 2012 Apr;78(7):2410-21.  [Content Brief]

  [5]. Munday R, et al. Induction of phase II detoxification enzymes in rats by plant-derived isothiocyanates: comparison of allyl isothiocyanate with sulforaphane and related compounds. J Agric Food Chem. 2004 Apr 7;52(7):1867-71.  [Content Brief]

Cells are plated at a density of 1×10⁵ cells/well in microtiter plates and treated with different concentrations of iberin (1, 2.5, 10 and 25 μM). Then 20 μL of 5 mg/mL MTT in PBS, is added to each well and allowed to incubate for a further 4 h. After 4 h of incubation, 100 μL of DMSO is added to each well to dissolve the formazan crystals. Absorbance values at 550 nm are measured with a microplate reader^[2].

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

Rats: Groups of five rats are dosed by oral intubation with the test compounds, as solutions in soybean oil, each day for 5 days. This doses used are 4.0 mg/kg/day for AITC, 5.9 mg/kg/day for iberverin, 6.5 mg/kg/day for iberin, 6.4 mg/kg/day for erucin, 7.1 mg/kg/day for sulforaphane, and 7.2 mg/kg/day for cheirolin. The volume of solution administered is 2 mL/kg in all cases. Ten control rats are dosed with soybean oil alone^[5].

Mice: Iberin is diluted in 96% ethanol to a concentration of 32 mg/mL followed by a 40x dilution in 0.9% NaCl. The mice are injected with 0.2 mL of the final solution, corresponding to 8 μg/g of body weight. The placebo group is injected with a 2.4% ethanol solution (96% ethanol–0.9% NaCl) corresponding to the amount of ethanol that the iberin-treated group received. Mice are treated every 12 h from day 2 preinsertion to day 2 postinsertion, and treatment is continued until 12 h before the mice are euthanized^[4].

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

• [1]. Jakubikova J, et al. Isothiocyanates induce cell cycle arrest, apoptosis and mitochondrial potential depolarization in HL-60 and multidrug-resistant cell lines. Anticancer Res. 2005 Sep-Oct;25(5):3375-86.  [Content Brief]

  [2]. Jadhav U, et al. Iberin induces cell cycle arrest and apoptosis in human neuroblastoma cells.  [Content Brief]

  [3]. Jadhav U, et al. Dietary isothiocyanate iberin inhibits growth and induces apoptosis in human glioblastoma cells. J Pharmacol Sci. 2007 Feb;103(2):247-51.  [Content Brief]

  [4]. Jakobsen TH, et al. Food as a source for quorum sensing inhibitors: iberin from horseradish revealed as a quorumsensing inhibitor of Pseudomonas aeruginosa. Appl Environ Microbiol. 2012 Apr;78(7):2410-21.  [Content Brief]

  [5]. Munday R, et al. Induction of phase II detoxification enzymes in rats by plant-derived isothiocyanates: comparison of allyl isothiocyanate with sulforaphane and related compounds. J Agric Food Chem. 2004 Apr 7;52(7):1867-71.  [Content Brief]