Taltobulin(Synonyms: HTI-286; SPA-110)

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Taltobulin (Synonyms: HTI-286; SPA-110) 纯度: 99.65%

Taltobulin (HTI-286) 是一种合成的三肽半胱氨酸类似物，Taltobulin 是一种有效的抗微管剂 (antimicrotubule)，可在体内外规避 P-糖蛋白介导的耐药性。Taltobulin 抑制纯化的微管蛋白聚合，破坏细胞中的微管组织，并诱导有丝分裂停滞以及凋亡 (apoptosis)。

Taltobulin(Synonyms: HTI-286; SPA-110)

Taltobulin Chemical Structure

CAS No. : 228266-40-8

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10 mM * 1 mL in DMSO ￥2530 In-stock
5 mg ￥2300 In-stock
10 mg ￥3600 In-stock
50 mg ￥11000 In-stock
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生物活性

Taltobulin (HTI-286), a synthetic analogue of the tripeptide hemiasterlin, is a potent antimicrotubule agent that circumvents P-glycoprotein-mediated resistance in vitro and in vivo. Taltobulin inhibits the polymerization of purified tubulin, disrupts microtubule organization in cells, and induces mitotic arrest, as well as apoptosis[1].

IC50 & Target

Traditional Cytotoxic Agents

 

体外研究
(In Vitro)

Taltobulin (HTI-286; 0.2-7.3 nM; 3 days) inhibits the growth of 18 tumor cell lines (leukemia, ovarian, NSCLC, breast, colon, and melanoma cell lines) with an average IC50 of 2.5±2.1 nM and a median value of 1.7 nM[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.

Cell Proliferation Assay[1]

Cell Line: Leukemia CCRF-CEM cell line; ovarian 1A9 cell line; NSCLC A549 and NCI-H1299 cell lines; breast MX-1W and MCF-7 cell lines; colon HCT-116, DLD-1, Colo205, KM20, SW620, S1, HCT-15 and Moser cell lines; melanoma A375, Lox and SK-Mel-2 cell lines
Concentration: 0.2-7.3 nM
Incubation Time: 3 days
Result: Inhibited the growth of tumor cell lines with IC50s of 0.2±0.03 nM (for leukemia CCRF-CEM cell line), 0.6±0.1 nM (for ovarian 1A9 cell line), 1.1±0.5 and 6.8±6.1 nM ( for NSCLC A549 and NCI-H1299 cell lines), 1.8±0.6, 7.3±2.3 nM (for breast MX-1W, MCF-7 cell lines), 0.7±0.2, 1.1±0.4, 1.5±0.6, 1.8±0.6, 3.6±0.8, 3.7±2.0, 4.2±2.5, and 5.3±4.1 nM ( for colon HCT-116, DLD-1, Colo205, KM20, SW620, S1, HCT-15, and Moser cell lines), 1.1±0.8, 1.4±0.6 and 1.7±0.5 nM (for melanoma A375, Lox and SK-Mel-2 cell lines).

体内研究
(In Vivo)

Taltobulin (HTI-286; 1.6 mg/kg i.v.) inhibits the growth of human tumor xenografts (e.g., HCT-15, DLD-1, MX-1W, and KB-8-5) in athymic nu/nu female mice[1].
Taltobulin (HTI-286; 3 mg/kg; p.o. gavage) inhibits growth by 97.3 % and 82% in athymic nu/nu female mice with Lox melanoma xenografts and KB-3-1 epidermoid xenograft model, respectively[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.

Animal Model: Athymic nu/nu female mice with Lox melanoma model (5-6 weeks of age)[1]
Dosage: 1.6 mg/kg
Administration: Administered i.v.;for 35 days
Result: Growth of Lox tumors was inhibited by 96-98% on day 12 compared with vehicle-treated controls.
Growth of KB-8-5 tumors was inhibited by 84% on day 14 compared with vehicle-treated controls.
Growth of MX-1W tumors was inhibited by 97% compared with vehicle-treated controls.
Growth of DLD-1 and HCT-15 tumors was inhibited by 80 and 66%, respectively.

分子量

473.65

Formula

C27H43N3O4
CAS 号

228266-40-8
运输条件

Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : ≥ 100 mg/mL (211.13 mM)

* “≥” means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.1113 mL 10.5563 mL 21.1126 mL
5 mM 0.4223 mL 2.1113 mL 4.2225 mL
10 mM 0.2111 mL 1.0556 mL 2.1113 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 (5.28 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.28 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 (5.28 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.28 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 (5.28 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.28 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。

  • 4.

    请依序添加每种溶剂： 5% DMSO    40% PEG300    5% Tween-80    50% saline

    Solubility: ≥ 2.5 mg/mL (5.28 mM); Clear solution

  • 5.

    请依序添加每种溶剂： 5% DMSO    95% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (5.28 mM); Clear solution

  • 6.

    请依序添加每种溶剂： 1% DMSO    99% saline

    Solubility: ≥ 0.5 mg/mL (1.06 mM); Clear solution

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献

  • [1]. Loganzo F, et al. HTI-286, a synthetic analogue of the tripeptide hemiasterlin, is a potent antimicrotubule agent that circumvents P-glycoprotein-mediated resistance in vitro and in vivo. Cancer Res. 2003 Apr 15;63(8):1838-45.

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