规格 | 价格 | 库存 | 数量 |
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5mg |
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10mg |
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50mg |
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100mg |
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250mg |
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Other Sizes |
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体外研究 (In Vitro) |
在 SKOV-33 细胞中,硒(100–400 μM;3 天)可促进惰性 [1]。 caspase-3 介导的细胞惰性由 100–400 μM 硒甲酯诱导三天 [1]。考试 [1]
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体内研究 (In Vivo) |
接受 FaDu 和 A253 头颈异种移植肿瘤活性的裸鼠在接受硒治疗(0.2 mg/小鼠;面部;每天一次,持续 14 天)时,CDDP 和环磷酰胺耐药性增加[2]。在十个月的时间里,对患有阿尔茨海默氏病(AD)的小鼠进行腹膜内(IT)注射甲基酪氨酸(每天0.75毫克/公斤体重)。减少氧化中间体、神经通路和各种金属离子的水平。它还抑制前体蛋白 APP 和 β 酶 (BACE1) 的表达,从而降低淀粉样蛋白 β 肽 (Aβ) 的产生,形成片段化 tau 过度磷酸化,并通过促进蛋白磷酸酶 2A (PP2A) 活性形成神经原纤维缠结 (NFT) )。这可以保护突触蛋白和神经元活动,进而改善 AD 模型中的空间学习和记忆缺陷 [3]。
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细胞实验 |
细胞凋亡分析[1]
细胞类型: SKOV-3 细胞 测试浓度: 100、200、400 μM 孵育时间: 3天 实验结果:导致Sub-G1期的积累显着增加,这发生在SeMSC浓度和培养时间依赖性上。 蛋白质印迹分析[1] 细胞类型: SKOV-3 细胞 测试浓度: 100、200、400 μM 孵育时间:3 天 实验结果:导致 32 kDa 形式的 procaspase-3 表达减少。 |
动物实验 |
Animal/Disease Models: Female athymic nude mice (bearing human A253 and FaDu squamous cell carcinoma xenografts) [ 2]
Doses: 0.2mg/only Route of Administration: po; ]. one time/day for 14 days (7 days before and 7 days after cyclophosphamide or CDDP, 14 days total) Experimental Results: |
参考文献 |
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其他信息 |
Se-methyl-L-selenocysteine is an L-alpha-amino acid compound having methylselanylmethyl as the side-chain. It has a role as an antineoplastic agent. It is a Se-methylselenocysteine, a non-proteinogenic L-alpha-amino acid and a L-selenocysteine derivative. It is a conjugate base of a Se-methyl-L-selenocysteinium. It is a conjugate acid of a Se-methyl-L-selenocysteinate. It is an enantiomer of a Se-methyl-D-selenocysteine. It is a tautomer of a Se-methyl-L-selenocysteine zwitterion.
Methylselenocysteine has been used in trials studying the prevention of Prostate Carcinoma and No Evidence of Disease. Se-Methylselenocysteine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Se-methylselenocysteine has been reported in Bos taurus, Astragalus bisulcatus, and Euglena gracilis with data available. Methylselenocysteine is a naturally occurring organoselenium compound found in many plants, including garlic, onions, and broccoli, with potential antioxidant and chemopreventive activities. Se-Methyl-seleno-L-cysteine (MSC) is an amino acid analogue of cysteine in which a methylselenium moiety replaces the sulphur atom of cysteine. This agent acts as an antioxidant when incorporated into glutathione peroxidase and has been shown to exhibit potent chemopreventive activity in animal models. |
分子式 |
C4H9NO2SE
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分子量 |
182.081
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精确质量 |
182.979
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CAS号 |
26046-90-2
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相关CAS号 |
Se-Methylselenocysteine hydrochloride;863394-07-4
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PubChem CID |
147004
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外观&性状 |
White to off-white solid powder
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沸点 |
314.1±37.0 °C at 760 mmHg
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熔点 |
177 °C(dec.)
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闪点 |
143.7±26.5 °C
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蒸汽压 |
0.0±1.4 mmHg at 25°C
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LogP |
-0.89
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tPSA |
63.32
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氢键供体(HBD)数目 |
2
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氢键受体(HBA)数目 |
3
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可旋转键数目(RBC) |
3
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重原子数目 |
8
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分子复杂度/Complexity |
86.1
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定义原子立体中心数目 |
1
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SMILES |
C[Se]C[C@@H](C(=O)O)N
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InChi Key |
XDSSPSLGNGIIHP-VKHMYHEASA-N
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InChi Code |
InChI=1S/C4H9NO2Se/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1
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化学名 |
(2R)-2-amino-3-methylselanylpropanoic acid
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别名 |
Se-Methylselenocysteine Se-MSC MSeCSeMCys SeMSCSe MSC
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HS Tariff Code |
2934.99.9001
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存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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溶解度 (体外实验) |
H2O : ~83.33 mg/mL (~457.66 mM)
DMSO :< 1 mg/mL |
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溶解度 (体内实验) |
配方 1 中的溶解度: 50 mg/mL (274.60 mM) in PBS (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液; 超声助溶。
请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
制备储备液 | 1 mg | 5 mg | 10 mg | |
1 mM | 5.4921 mL | 27.4605 mL | 54.9209 mL | |
5 mM | 1.0984 mL | 5.4921 mL | 10.9842 mL | |
10 mM | 0.5492 mL | 2.7460 mL | 5.4921 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
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)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
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 ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。
NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
NCT04952129 | ACTIVE, NOT RECRUITING | Drug: Selenomethionine Drug: Methylselenocysteine |
Colorectal Adenoma | University of Auckland, New Zealand | 2022-05-06 | Phase 1 |
NCT00489372 | COMPLETED | Drug: Se-methyl-seleno-L-cysteine Other: placebo Other: pharmacological study Other: laboratory biomarker analysis |
Healthy, no Evidence of Disease | National Cancer Institute (NCI) | 2007-07 | Phase 1 |
NCT01497431 | COMPLETED | Dietary Supplement: Selenium Other: Placebo Other: Laboratory Biomarker Analysis |
No Evidence of Disease Prostate Carcinoma |
National Cancer Institute (NCI) | 2011-11 | Phase 1 |
NCT01611038 | COMPLETED | Dietary Supplement: Methylselenocysteine Dietary Supplement: Placebo |
Breast Cancer Prostate Cancer |
Rutgers, The State University of New Jersey | 2011-10 | Not Applicable |
NCT00829205 | WITHDRAWN | Biological: filgrastim Biological: rituximab Dietary Supplement: Se-methyl-seleno-L-cysteine |
Lymphoma | Cancer Research UK | 2009-01 | Phase 1 Phase 2 |