Taltobulin hydrochloride

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HTI-286 hydrochloride
SPA-110 hydrochloride

Taltobulin hydrochloride (HTI-286 hydrochloride) 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 hydrochloride 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)。

生物活性

Taltobulin hydrochloride (HTI-286 hydrochloride), a synthetic analogue of the tripeptide hemiasterlin, is a potentantimicrotubuleagent that circumvents P-glycoprotein-mediated resistance in vitro and in vivo. Taltobulin hydrochloride inhibits the polymerization of purified tubulin, disrupts microtubule organization in cells, and induces mitotic arrest, as well asapoptosis^[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 IC₅₀of 2.5±2.1 nM and a median value of 1.7 nM^[1].

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].

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

510.11

性状

Solid

Formula

C₂₇H₄₄ClN₃O₄

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性数据

In Vitro:

DMSO : ≥ 100 mg/mL(196.04 mM)

H₂O : 33.33 mg/mL(65.34 mM;Need ultrasonic)

*"≥" 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	1.9604 mL	9.8018 mL	19.6036 mL
5 mM	0.3921 mL	1.9604 mL	3.9207 mL
10 mM	0.1960 mL	0.9802 mL	1.9604 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℃, 6 months; -20℃, 1 month (sealed storage, away from moisture)。-80℃ 储存时，请在 6 个月内使用，-20℃ 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 (4.90 mM); Clear solution
此方案可获得 ≥ 2.5 mg/mL (4.90 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-CDin saline)
Solubility: ≥ 2.5 mg/mL (4.90 mM); Clear solution
此方案可获得 ≥ 2.5 mg/mL (4.90 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 μL20% 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 (4.90 mM); Clear solution
此方案可获得 ≥ 2.5 mg/mL (4.90 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。

*以上所有助溶剂都可在本网站选购。