规格 | 价格 | 库存 | 数量 |
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5mg |
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10mg |
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25mg |
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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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靶点 |
Microtubule/Tubulin
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体外研究 (In Vitro) |
Epothilone D (KOS862) 是一种比 Epothilone A 或 B 更有效的体外微管稳定剂。在体外,Epothilone D 在一组人类肿瘤细胞系中显示出有效的细胞毒性,与紫杉醇具有相似的效力。埃博霉素 D 在耐药细胞系中也显示出优于紫杉醇的明显优势,并且保留了其针对过度表达 P-糖蛋白的多药耐药细胞系的细胞毒性[1]。 Epothilone D (EpoD) 是一种微管 (MT) 稳定剂[2]。
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体内研究 (In Vivo) |
为了评估 Epothilone D (EpoD) 是否改善 PS19 小鼠的 MT 和轴突功能,3 个月大的雄性 PS19 小鼠组每周接受载体或 Epothilone D(1 mg/kg 或 3 mg/kg)的腹腔注射,总共3个月。此外,3个月大的非Tg同窝仔鼠接受3mg/kg埃博霉素D或媒介物。 3 mg/kg 埃坡霉素 D 剂量相当于 II 期临床研究中使用剂量的约 10 倍,这应最大限度地减少在人类受试者中使用 MT 稳定药物观察到的副作用,例如中性粒细胞减少症。接受埃博霉素 D 治疗的 PS19 和 WT 小鼠没有表现出药物不耐受的迹象。事实上,所有接受药物治疗的小鼠都表现出与媒介物治疗的动物无法区分的体重增加。同样,媒介物和埃坡霉素 D 处理的小鼠的相对器官重量相似。使用标准转棒测试评估埃坡霉素 D 治疗小鼠的运动表现,与媒介物治疗组没有显着差异。最后,尽管组间差异较小,但任何治疗组之间的白细胞计数或中性粒细胞含量没有显着差异。因此,这些研究中使用的低剂量埃坡霉素 D 似乎具有良好的耐受性[2]。
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动物实验 |
Mice: Three groups of mice (n = 3) are given intraperitoneal (i.p.) injections of 3.7 mg/kg of dissolved Epothilone D (epoD) in 100% DMSO. The mice are then put to sleep using approved methods at intervals of 0.25 to 24 hours. In a different study, three groups of mice (n=3) are injected with 3 mg/kg of epoD in 100% DMSO, and four, six, and ten days later, they are put to death. Using LC-MS/MS procedures, the levels of epothilone D (epoD) in brain and blood samples are ascertained. For a duration of three months, groups (n=10–13) of three-month-old PS19 tau Tg mice or their three-month-old non-Tg littermates receive weekly intraperitoneal injections (i.p.) of vehicle (DMSO), 1 mg/kg epoD, or 3 mg/kg epothilone D (ep. Pets are weighed every week and watched for indications of unusual behavior or distress. Testing of the mice's motor and cognitive abilities occurs after the last dosage. Upon euthanasia, the optic nerve (ON) and brain are removed for immunohistochemical examination. An organ weight assessment and necropsy are also performed on a subset of mice from each group.
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参考文献 |
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其他信息 |
Epothilone D is an epithilone that is epithilone C in which the hydrogen at position 13 of the oxacyclohexadec-13-ene-2,6-dione macrocycle has been replaced by a methyl group. It has a role as a microtubule-stabilising agent.
Epothilone D has been reported in Myxococcus xanthus, Sorangium cellulosum, and Streptomyces venezuelae with data available. Epothilone D is a natural polyketide compound isolated from the myxobacterium Sorangium cellulosum. Also known as desoxyepothilone B, epothilone D binds to tubulin and inhibits the disassembly of microtubules, resulting in the inhibition of mitosis, cellular proliferation, and cell motility. (NCI04) Drug Indication Investigated for use/treatment in colorectal cancer, lung cancer, breast cancer, solid tumors, and prostate cancer. Mechanism of Action The principal mechanism of the epothilone class is inhibition of microtubule function. Microtubules are essential to cell division, and epothilones therefore stop cells from properly dividing. |
分子式 |
C27H41NO5S
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分子量 |
491.6831
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精确质量 |
491.27
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元素分析 |
C, 65.95; H, 8.40; N, 2.85; O, 16.27; S, 6.52
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CAS号 |
189453-10-9
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相关CAS号 |
(16R)-Epothilone D
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PubChem CID |
447865
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外观&性状 |
White to light yellow solid powder
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密度 |
1.1±0.1 g/cm3
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沸点 |
657.7±55.0 °C at 760 mmHg
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熔点 |
63-66°C
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闪点 |
351.6±31.5 °C
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蒸汽压 |
0.0±2.1 mmHg at 25°C
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折射率 |
1.526
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LogP |
3.69
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tPSA |
124.96
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氢键供体(HBD)数目 |
2
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氢键受体(HBA)数目 |
7
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可旋转键数目(RBC) |
2
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重原子数目 |
34
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分子复杂度/Complexity |
777
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定义原子立体中心数目 |
5
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SMILES |
S1C(C([H])([H])[H])=NC(=C1[H])/C(/[H])=C(\C([H])([H])[H])/[C@]1([H])C([H])([H])C([H])=C(C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])[C@]([H])(C([H])([H])[H])[C@@]([H])([C@@]([H])(C([H])([H])[H])C(C(C([H])([H])[H])(C([H])([H])[H])[C@]([H])(C([H])([H])C(=O)O1)O[H])=O)O[H] |t:24|
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InChi Key |
XOZIUKBZLSUILX-GIQCAXHBSA-N
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InChi Code |
InChI=1S/C27H41NO5S/c1-16-9-8-10-17(2)25(31)19(4)26(32)27(6,7)23(29)14-24(30)33-22(12-11-16)18(3)13-21-15-34-20(5)28-21/h11,13,15,17,19,22-23,25,29,31H,8-10,12,14H2,1-7H3/b16-11-,18-13+/t17-,19+,22-,23-,25-/m0/s1
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化学名 |
(4S,7R,8S,9S,13Z,16S)-4,8-dihydroxy-5,5,7,9,13-pentamethyl-16-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-1-oxacyclohexadec-13-ene-2,6-dione
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别名 |
KOS 862; (-)-Desoxyepothilone B; (-)-Epothilone D; KOS-862; 12,13-Deoxyepothilone B; KOS862; 12,13-Desoxyepothilone B; Desoxyepothilone B; Epo D; Epothilone D; NSC 703147.
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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) |
DMSO: ≥ 100 mg/mL (~203.4 mM)
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溶解度 (体内实验) |
配方 1 中的溶解度: ≥ 2.5 mg/mL (5.08 mM) (饱和度未知) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将100 μL 25.0 mg/mL澄清DMSO储备液加入到400 μL PEG300中,混匀;然后向上述溶液中加入50 μL Tween-80,混匀;加入450 μL生理盐水定容至1 mL。 *生理盐水的制备:将 0.9 g 氯化钠溶解在 100 mL ddH₂O中,得到澄清溶液。 配方 2 中的溶解度: ≥ 2.5 mg/mL (5.08 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。 例如,若需制备1 mL的工作液,可将 100 μL 25.0 mg/mL 澄清 DMSO 储备液加入到 900 μL 玉米油中并混合均匀。 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 | 2.0338 mL | 10.1692 mL | 20.3384 mL | |
5 mM | 0.4068 mL | 2.0338 mL | 4.0677 mL | |
10 mM | 0.2034 mL | 1.0169 mL | 2.0338 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 |
NCT00337649 | Completed | Drug: Epothilone D Drug: Herceptin |
Breast Cancer | Hoffmann-La Roche | May 2004 | Phase 1 Phase 2 |
NCT00030173 | Completed | Drug: Epothilone D (KOS-862) |
Neoplasms | Bristol-Myers Squibb | October 2001 | Phase 1 |
NCT00077259 | Completed | Drug: epothilone D | Colorectal Cancer | Memorial Sloan Kettering Cancer Center |
October 2003 | Phase 2 |
NCT00081107 | Completed | Drug: epothilone D | Lung Cancer | Memorial Sloan Kettering Cancer Center |
December 2003 | Phase 2 |
NCT00104130 | Terminated | Drug: KOS-862 | Prostate Cancer | Bristol-Myers Squibb | December 2004 | Phase 2 |