Dehydrocorydaline chloride (13-Methylpalmatine chloride) is an alkaloid that regulates protein expression of Bax, Bcl-2; activates caspase-7, caspase-8, and inactivates PARP^[1]. Dehydrocorydaline chloride elevates p38 MAPK activation. Anti-inflammatory and anti-cancer activities^[2]. Dehydrocorydaline chloride shows strong anti-malarial effects (IC₅₀ =38 nM), and low cytotoxicity (cell viability > 90%) using P. falciparum 3D7 strain^[3].

p38 MAPK^[2]

Treatment of C2C12 myoblasts with 500 nM Dehydrocorydaline increases the expression levels of muscle-specific proteins, including MyoD, myogenin and myosin heavy chain. Treatment with Dehydrocorydaline elevates p38 MAPK activation and the interaction of MyoD with an E protein. Furthermore, defects in differentiation-induced p38 MAPK activation and myoblast differentiation induced by depletion of the promyogenic receptor protein Cdo in C2C12 myoblasts are restored by Dehydrocorydaline treatment^[2]. Dehydrocorydaline significantly inhibits MCF-7 cell proliferation in a dose- dependent manner, which can be reversed by a caspase-8 inhibitor, Z-IETD-FMK. Dehydrocorydaline increases DNA fragments without affecting ΔΨm. Western blotting assay shows that dehydrocorydaline dose-dependently increases Bax protein expression and decreases Bcl-2 protein expression. Furthermore, dehydrocorydaline induces activation of caspase-7,-8 and the cleavage of PARP without affecting caspase-9. These results show that dehydrocorydaline inhibits MCF-7 cell proliferation by inducing apoptosis mediated by regulating Bax/Bcl-2, activating caspases as well as cleaving PARP^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Dehydrocorydaline (3.6, 6 or 10 mg/kg, i.p.) shows a dose-dependent antinociceptive effect in the acetic acid-induced writhing test and significantly attenuates the formalin-induced pain responses in mice. In the formalin test, dehydrocorydaline decreases the expression of caspase 6 (CASP6), TNF-α, IL-1β and IL-6 proteins in the spinal cord. These findings confirm that Dehydrocorydaline has antinociceptive effects in mice^[4].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

401.88

C₂₂H₂₄ClNO₄

10605-03-5

盐酸脱氢紫堇碱；盐酸去氢紫堇碱；盐酸脱氢紫堇硷；盐酸脱氢延胡索碱；盐酸去氢延胡索碱

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

In Vitro: 

DMSO : 25 mg/mL (62.21 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 (sealed storage, away from moisture)。-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    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (6.22 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.22 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 (6.22 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.22 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 (6.22 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (6.22 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]. Xu Z, et al. Dehydrocorydaline inhibits breast cancer cells proliferation by inducing apoptosis in MCF-7 cells. Am J Chin Med. 2012;40(1):177-85.

  [2]. Yoo M, et al. Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation. Mol Med Rep. 2016 Oct;14(4):3029-36.

  [3]. Nonaka M, et al. Screening of a library of traditional Chinese medicines to identify anti-malarial compounds and extracts. Malar J. 2018 Jun 25;17(1):244.

  [4]. Yin ZY, et al. Antinociceptive effects of dehydrocorydaline in mouse models of inflammatory pain involve the opioid receptor and inflammatory cytokines. Sci Rep. 2016 Jun 7;6:27129

Briefly, MCF-7 cells (1×10⁴ cells/well) are seeded in 96-well plates and treated with different concentrations of dehydrocorydaline (0-200 μM) for 24 h. The cell viability is determined. To explore the role of caspase-8 in dehydrocorydaline induced cytotoxicity, a caspase-8 inhibitor Z-IETD-FMK (10 μM) is co-incubated with 200 μM dehydrocorydaline.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Briefly, the mice are placed individually in glass beakers and are allowed to acclimate for 30 min before the test. The vehicle or Dehydrocorydaline (3.6, 6 or 10 mg/kg) are injected (10 ml/kg, i.p.) 15 min prior to the formalin injection. Morphine (10 mg/kg) or diclofenac sodium (20 mg/kg) are injected 15 and 30 min, respectively, prior to the formalin injection as positive controls. Then, 25 μL of a 5% formalin solution is injected into the plantar surface of the right hind paw of each mouse. Immediately after the formalin injection, the mice are placed individually in the beakers, and a mirror is placed under the beaker to allow clear observation of the paws of the animals. The time that the animals spent on biting/licking the injected paw is measured with a stopwatch every 5 min and considered as indication of nociception.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Xu Z, et al. Dehydrocorydaline inhibits breast cancer cells proliferation by inducing apoptosis in MCF-7 cells. Am J Chin Med. 2012;40(1):177-85.

  [2]. Yoo M, et al. Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation. Mol Med Rep. 2016 Oct;14(4):3029-36.

  [3]. Nonaka M, et al. Screening of a library of traditional Chinese medicines to identify anti-malarial compounds and extracts. Malar J. 2018 Jun 25;17(1):244.

  [4]. Yin ZY, et al. Antinociceptive effects of dehydrocorydaline in mouse models of inflammatory pain involve the opioid receptor and inflammatory cytokines. Sci Rep. 2016 Jun 7;6:27129