2. Immunology/Inflammation
  3. Toll-like Receptor (TLR)
  4. Stepharine

Stepharine 是天然的生物碱，可直接靶向 TLR4 (TLR4 抑制剂)，结合 TLR4/MD2 复合体。Stepharine 具有抗衰老、抗病毒和抗高血压等活性。

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Stepharine Chemical Structure

Stepharine Chemical Structure

CAS No. : 2810-21-1

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规格 价格 是否有货 数量
1 mg ￥4200
In-stock
5 mg   询价  
10 mg   询价  

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Customer Review

Stepharine 相关抗体

Top Publications Citing Use of Products

MCE 顾客使用本产品发表的 1 篇科研文献

查看 Toll-like Receptor (TLR) 亚型特异性产品:

查看所有亚型
TLR3 TLR8 TLR9 TLR2 TLR4 TLR7 TLR1 TLR6

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Stepharine, an natural alkaloid, directly interactes with TLR4 and binds to the TLR4/MD2 complex (TLR4 inhibitor). Stepharine possesses anti-aging, anti-viral and anti-hypertensive effects[1].

体外研究
(In Vitro)

Stepharine (10, 30 μM) substantially inhibits nitric oxide (NO) release as well as the mRNA and protein expression of pro-inflammatory mediators [inducible nitric oxide synthase, interleukin (IL)-6, tumor necrosis factor (TNF)-α, IL-1β] in LPS-activated BV-2 cells[1].
Stepharine (10, 30 μM) inhibits LPS-induced increase of TLR4 expression, IκBα phosphorylation, and NF-κB p65 nuclear translocation[1].
Stepharine exhibits neuroprotective effects on SH-SY5Y cells cultured with LPS-treated conditioned medium. Stepharine has also shown to inhibit cholinesterase in vitro[1].

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

Stepharine 相关抗体:
体内研究
(In Vivo)

Stepharine (500 μg/kg) inhibited NeuN+ cells loss and Iba-1+ cells increase in the MCAO ischemic cortex[1].

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

Animal Model: Middle cerebral artery occlusion (MCAO) rat model[1].
Dosage: 500 μg/kg (20 μL).
Administration: Intranasally injected into rats 1h after MCAO.
Result: Attenuated the neuronal loss induced by MCAO (MCAO+ stepharine) group.
分子量

297.35

Formula

C18H19NO3
CAS 号
性状

固体

颜色

Pale purple to purple

结构分类
初始来源
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO 中的溶解度 : 25 mg/mL (84.08 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)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.3630 mL 16.8152 mL 33.6304 mL
5 mM 0.6726 mL 3.3630 mL 6.7261 mL
查看完整储备液配制表

* 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。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物溶解方案计算器
请输入动物实验的基本信息：

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

只
由于实验过程有损耗，建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
纯度 & 产品资料

纯度: ≥98.0%

COA (276 KB)

产品使用指南 (1538 KB)
参考文献

Stepharine 相关分类

完整储备液配制表

* 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。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.3630 mL 16.8152 mL 33.6304 mL 84.0760 mL
5 mM 0.6726 mL 3.3630 mL 6.7261 mL 16.8152 mL
10 mM 0.3363 mL 1.6815 mL 3.3630 mL 8.4076 mL
15 mM 0.2242 mL 1.1210 mL 2.2420 mL 5.6051 mL
20 mM 0.1682 mL 0.8408 mL 1.6815 mL 4.2038 mL
25 mM 0.1345 mL 0.6726 mL 1.3452 mL 3.3630 mL
30 mM 0.1121 mL 0.5605 mL 1.1210 mL 2.8025 mL
40 mM 0.0841 mL 0.4204 mL 0.8408 mL 2.1019 mL
50 mM 0.0673 mL 0.3363 mL 0.6726 mL 1.6815 mL
60 mM 0.0561 mL 0.2803 mL 0.5605 mL 1.4013 mL
80 mM 0.0420 mL 0.2102 mL 0.4204 mL 1.0510 mL
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Stepharine2810-21-1Toll-like Receptor (TLR)ischemicstrokecholinesterasenitricoxideNOiNOSproinflammatorycytokineIL-6IL-8Inhibitorinhibitorinhibit

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目录号：
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