L-Sepiapterin
(Synonyms: L-墨蝶呤,Sepiapterin) 目录号 : GC61007
L-Sepiapterin(Sepiapterin)是内皮型一氧化氮合酶(eNOS)辅因子四氢生物喋呤(BH4)的前体。L-Sepiapterin改善db/db小鼠肠系膜小动脉内皮功能障碍，诱导血管生成。L-Sepiapterin通过下调p70S6K依赖性VEGFR-2表达抑制卵巢癌细胞增殖和迁移。
Cas No.:17094-01-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
L-Sepiapterin (Sepiapterin) is a precursor of the endothelial nitric oxide synthase (eNOS) cofactor tetrahydrobiopterin (BH4). L-Sepiapterin improves endothelial dysfunction in small mesenteric arteries from db/db mice, and induces angiogenesis. L-Sepiapterin inhibits cell proliferation and migration of ovarian cancer cells via down-regulation of p70S6K-dependent VEGFR-2 expression[1][2].
L-Sepiapterin (Sepiapterin) (0.1-10 μM; 24 hpurs) Iinduces cell proliferation in a dose-dependent manner[1].L-Sepiapterin (1-50 μM; 20 minutes) significantly inhibits the phosphorylation of VEGF-A-induced (50 ng/ml) p70S6K[1].L-Sepiapterin inhibits VEGF-A-induced cell proliferation and migration through NO-independent mechanism[1]. Cell Proliferation Assay[1] Cell Line: SKOV-3 cells
Sepiapterin (10 mg/kg; p.o. (powder chow); daily for or 8 weeks) significantly improves the relaxation to Ach in small mesenteric arteries (SMA) from db/db mice[2]. Animal Model: Male C57BL/KsJ diabetic mice (db/db)[2]
[1]. Pannirselvam M, et al. Chronic oral supplementation with sepiapterin prevents endothelial dysfunction and oxidative stress in small mesenteric arteries from diabetic (db/db) mice. Br J Pharmacol. 2003;140(4):701‐706. [2]. Cho YR, et al. Sepiapterin inhibits cell proliferation and migration of ovarian cancer cells via down-regulation of p70S6K-dependent VEGFR-2 expression. Oncol Rep. 2011;26(4):861‐867.
| Cas No. | 17094-01-8 | SDF | |
| 别名 | L-墨蝶呤,Sepiapterin | ||
| Canonical SMILES | O=C1NC(N)=NC2=C1N=C(C([C@@H](O)C)=O)CN2 | ||
| 分子式 | C9H11N5O3 | 分子量 | 237.22 |
| 溶解度 | 储存条件 | Store at -20°C | |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 4.2155 mL | 21.0775 mL | 42.155 mL |
| 5 mM | 0.8431 mL | 4.2155 mL | 8.431 mL |
| 10 mM | 0.4215 mL | 2.1077 mL | 4.2155 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
L-Sepiapterin restores SLE serum-induced markers of endothelial function in endothelial cells
Lupus Sci Med 2019 Feb 19;6(1):e000294.PMID:31168396DOI:10.1136/lupus-2018-000294.
Objective: SLE serves as an independent risk factor` for endothelial dysfunction (ED) not explained by Framingham risk factors. We sought to understand the development of SLE-induced ED on a cellular level in order to develop strategies aimed at reversing cellular abnormalities. This study assessed the impact of SLE patient serum on endothelial nitric oxide synthase (eNOS), nitric oxide (NO) production and functional changes in the cell. Methods: Human umbilical vein endothelial cells (HUVECs) cultured in serum of either SLE (n=25) or healthy patients (n=14) or endothelial basal medium 2 (EBM-2) culture media supplemented with fetal bovine serum with or without L-Sepiapterin were used for our studies. We applied the fluorescent probe DAF-FM diacetate for intracellular NO detection using flow cytometry. Total RNA isolates were analysed using reverse transcription PCR for eNOS mRNA expression. Oxygen consumption rate was determined using seahorse analysis. Neutrophil adhesion and migration were determined using a calcein AM microscopy assay. Results: The mRNA expression of eNOS was increased in SLE cultured HUVECs compared with healthy control (p<0.05). The SLE eNOS mRNA level correlated with SLE patient age (p=0.008); however, this trend was not observed with healthy patients. SLE serum reduced NO production in HUVECs compared with EBM-2 cultured cells (p<0.05). Co-treatment of endothelial cells with L-Sepiapterin preserved HUVEC capacity to produce NO in SLE conditions (p<0.01). SLE serum enhanced neutrophil migration (p<0.01) but not neutrophil adhesion compared with healthy controls. The bioenergetic health index was not different. Conclusions: SLE likely causes disruption of endothelial cell eNOS function and NO modulated pathways.