Lith-O-Asp|cas:881179-02-8|西域试剂

Lith-O-Asp,98.0%

产品编号：Bellancom-112415| CAS NO：881179-02-8| 分子式：C₂₈H₄₅NO₆| 分子量：491.66

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货号	价格	库存与货期
Bellancom-112415	￥5500.00	杭州北京（现货）
Bellancom-112415	￥8500.00	杭州北京（现货）
Bellancom-112415	￥17500.00	杭州北京（现货）
Bellancom-112415	￥27500.00	杭州北京（现货）
Bellancom-112415	￥39500.00	杭州北京（现货）

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Lith-O-Asp

产品介绍

Lith-O-Asp 是唾液酸转移酶 (ST) 的抑制剂，其 IC₅₀ 值在 12-37 μM 之间。

生物活性

Lith-O-Asp is a sialytransferase (ST) inhibitor, with IC₅₀s of 12-37 μM.

体外研究

The results indicate that Lith-O-Asp shows no apparent growth inhibition effect toward different cancer cell lines at the tested doses of 10, 30, and 60 μM. By in vitro activity assay, it is revealed that the ability of Lith-O-Asp to inhibit the activities of ST3Gal I, ST3Gal III, and ST6GalI. The IC₅₀ values ranged from 12 to 37 μM. Flow cytometry shows a significant decrease in the expression of cell surface a-2,3- and a-2,6-sialylated antigens on The results indicates that Lith-O-Asp decreased the activity of both a-2,3- and a-2,6-sialyltransferases, and thus inhibit the transfer of sialic acids to the targeted glycoproteins.

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

体内研究

A significant amount of secondary metastatic cancer cells are observed in lung tissues of DMSO control mice detected using IVIS in vivo imaging system after 26 days of fat pad inoculation. However, Lith-O-Asp–treated mice show fewer lung metastases. All DMSO-treated mice confirm secondary lung metastasis, but only 3 of 8 Lith-O-Asp-treated mice show lung metastasis. Average tumor nodules per mouse are 11±9 nodules in DMSO-treated group, and 2±4 nodules in Lith-O-Asp-treated group. Additionally, significantly stronger 4T1-Luc illumination signals are shown in control mice than in those injected with Lith-O-Asp-treated cancer cells on days 7 and 9.

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

体内研究

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

性状

Solid

溶解性数据

In Vitro:

DMSO : 100 mg/mL (203.39 mM; Need ultrasonic)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	2.0339 mL	10.1696 mL	20.3393 mL
5 mM	0.4068 mL	2.0339 mL	4.0679 mL
10 mM	0.2034 mL	1.0170 mL	2.0339 mL

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。-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 (5.08 mM); Suspended solution; Need ultrasonic

此方案可获得 2.5 mg/mL (5.08 mM) 的均匀悬浊液，悬浊液可用于口服和腹腔注射。
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 (5.08 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (5.08 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 (5.08 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (5.08 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。