Casticin is a methyoxylated flavonol isolated from Viticis Fructus, with antimitotic and anti-inflammatory effect. Casticin inhibits the activation of STAT3.

STAT3^[3]

Casticin (0.2-1.0 μM) dose-dependently inhibits the proliferation of KB cells, with an IC₅₀ of 0.23 μM on day 3, while shows no significant inhibition on 3T3 Swiss Albino and TIG-103 cells. Casticin (0.6 μM) alters spindle morphology with partial mitotic spindle breakdown or with disordered spindles^[1]. Casticin (0-40 μM) dose-dependently inhibits the proliferation of LX2 cells. Casticin (40 μM) suppresses L02 cells proliferation and induces apoptosis. Casticin inhibits fibrotic effects of TGF-β1 on ECM deposition in LX2 cells by evaluating the mRNA levels of TGF-β, collagen α1(I), MMP-2, MMP-9, TIMP-1 and TIMP-2^[2]. Casticin (0-8 μM) reduces the viability of 786-O, YD-8, and HN-9 cells, but shows no significant effect on that of the normal HEL 299 cells. Casticin (5 μM) increases cleavage caspase-3 and PPAR, diminishes the levels of B-cell lymphoma-extra large (Bcl-xl), Bcl-2, IAP-1/-2, vascular endothelial growth factor (VEGF), matrix metallopeptidase 9 (MMP-9), and cyclooxygenase 2 (COX-2) proteins in 786-O, YD-8, and HN-9 cells. Casticin (5 μM) also promotes apoptotic cell death, inhibits constitutively active STAT3 in tumor cells, modulates STAT3 activation by altering the activity of upstream STAT3 regulators, and abrogates IL-6-induced STAT3 activation. In addition, Casticin (2.5 μM) enhances the effect of ionizing radiation in 786-O cells and potentiates the therapeutic effect of radiotherapy^[3].

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

Casticin (20 mg/kg, p.o.) has toxic effect on the liver in mice with CCl4-and BDL-induced hepatic injury. Casticin attenuates liver fibrosis induced by CCl4 or BDL in vivo. Casticin inhibits HSC activation and collagen matrix expression by blocking TGF-β/Smad signaling in vivo^[2].

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

374.34

C₁₉H₁₈O₈

479-91-4

蔓荆子黄素；紫花牡荆素

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)

In Vitro: 

DMSO : 100 mg/mL (267.14 mM; Need ultrasonic)

*

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 (protect from light)。-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。

In Vivo:

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    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 6.25 mg/mL (16.70 mM); Clear solution

  此方案可获得 ≥ 6.25 mg/mL (16.70 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 62.5 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

• [1]. Kobayakawa J, et al. G2-M arrest and antimitotic activity mediated by casticin, a flavonoid isolated from Viticis Fructus (Vitex rotundifolia Linne fil.). Cancer Lett. 2004 May 10;208(1):59-64.

  [2]. Zhou L, et al. Casticin attenuates liver fibrosis and hepatic stellate cell activation by blocking TGF-β/Smad signaling pathway. Oncotarget. 2017 Apr 27;8(34):56267-56280.

  [3]. Lee JH, et al. Casticin inhibits growth and enhances ionizing radiation-induced apoptosis through the suppression of STAT3 signaling cascade. J Cell Biochem. 2018 Dec 5.

LX-2 cells or L02 cells are plated at a density of 5 × 10³ cells per well in a 96-well plate and treated with Casticin (0-40 μM) for 48 h in growth medium containing serum. Cell proliferation is determined using a CCK-8 assay kit^[2].

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

Mice^[2]
Male mice 6-8 weeks of age weighing 20-30 g are kept in a temperature-controlled room with an alternating 12 h dark and light cycle. A total of 32 mice are divided randomly into four groups of 8 animals each: control, Casticin, CCl4, and CCl4 + Casticin. To induce liver fibrosis, CCl4 dissolved in olive oil (20%) is injected intraperitoneally into mice (1.0 mL/kg body weight) in the CCl4 and CCl4 + Casticin groups twice a week for six weeks. Mice in the control group and Casticin group are injected with an equivalent volume of olive oil. Casticin is dissolved in 0.25% Tween-80. After treatment with CCl4 or olive oil for six weeks, mice in the Casticin group and CCl4 + Casticin group receives Casticin (20 mg/kg) by gastric gavage daily for two weeks, and the other two groups are given the equivalent volume of 0.25% Tween-80. After the eight week intervention period, mice are euthanatized under 3% pentobarbital sodium anesthesia (40 mg/kg ip), and the livers and blood from all animals are collected. Serum is obtained by centrifugation (1600 g, 15 min) and stored at −20°C for further examination^[2].

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

• [1]. Kobayakawa J, et al. G2-M arrest and antimitotic activity mediated by casticin, a flavonoid isolated from Viticis Fructus (Vitex rotundifolia Linne fil.). Cancer Lett. 2004 May 10;208(1):59-64.

  [2]. Zhou L, et al. Casticin attenuates liver fibrosis and hepatic stellate cell activation by blocking TGF-β/Smad signaling pathway. Oncotarget. 2017 Apr 27;8(34):56267-56280.

  [3]. Lee JH, et al. Casticin inhibits growth and enhances ionizing radiation-induced apoptosis through the suppression of STAT3 signaling cascade. J Cell Biochem. 2018 Dec 5.