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|---|
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Ansamitocin P-3 (Antibiotic C 15003P3) 是一种微管 (microtubule)抑制剂。Ansamitocin P-3 是一种大环抗肿瘤抗生素。
Information
Ansamitocin p-3 (Maytansinol isobutyrate, NSC292222, Antibiotic C 15003P3) is a potent inhibitor of tubulin polymerization with IC50 of 3.4 μM.
In vitro
Ansamitocin p-3 at 5 μM completely inhibits the polymerization of tubulin isolated from bovine brains, but in contrast to VCR, Ansamitocin p-3 at a high concentration of 80 μM does not leads to the aggregation of tubulin. Ansamitocin p-3 at 16 μM also potently depolymerizes the polymerized tubulin (IC50 = 3.8 μM). The addition of Ansamitocin p-3 to culture cells blocks the morphological alteration of AC cells from fibroepithelioid to a glial cell type caused by the exposure to a certain concentration of dibutyryl cyclic adenosine 3\':5\'-monophosphate. In addition, Ansamitocin p-3 treatment at 16 nM causes the well-defined network of cytoplasmic microtubules of A31 cells rapidly dispersed. Short-term Ansamitocin p-3 treatment also inhibits the synthesis of DNA in A31 cells or KB cells. These results confirm that Ansamitocin p-3 acts by interfering with the microtubule assembly system, thus resulting in an inhibition of mitotic spindle fiber formation and, ultimately, cytokilling. Ansamitocin p-3 displays potent cytotoxicity against A-549, HT-29, and MCF-7 cells in a dose-dependent manner with ED50 of 4 ×10-7, 4 × 10-7, and 2 × 10-6 μg/mL, respectively. Ansamitocin p-3 also exhibits cytotoxicity against HCT-116 cells with a much low EC50 of 0.081 nM. Ansamitocin p-3 enhances the effect of radiation both in Drosophila cells and human cancer cells in a p53 dependent manner.
In vivo
Ansamitocin p-3 treatment (>1 μg) significantly suppresses the growth of leukemia SN36, and induces an increased arrest in metaphase of P388 leukemia cells. Ansamitocin p-3 treatment at 25 μg/kg/day significantly prolongs the survival time of mice bearing i.p. B16 melanoma by 130%. Ansamitocin p-3 treatment also significantly prolongs the survival time of mice bearing Ehrlich ascites carcinoma, Sarcoma 180, and P815 mastocytoma, while slightly prolongs the survival time of mice bearing ascites MOPC-104E myeloma,leukemia L1210, and leukemia C1498.
Cell Research(from reference)
Cell lines:A31 and KB
Concentrations:Dissolved in DMSO, final concentrations ~10 μM
Incubation Time:~24 hours
分类树(Taxonomy Tree)
| 界(kingdom) | 有机化合物 |
|---|---|
| 超类(Superclass) | 苯丙素类和聚酮类 |
| 类(Class) | 大环内酰胺类 |
| 亚类(Subclass) | 暂无 |
| 中间层级节点(Intermediate Tree Nodes) | 暂无 |
| 直接上位类(Direct Parent) | 大环内酰胺类 |
| 其他上位类(Alternative Parents) | 茴香醚 烷基芳基醚 1,3-恶嗪烷 芳基氯化物 叔羧酸酰胺 氨基甲酸酯 有机碳酸及其衍生物 内酰胺类 羧酸酯 氧环化合物 醇胺 氮杂环化合物 一元羧酸及其衍生物 二烷基醚 环氧物 有机氯化物 羰基化合物 碳氢化合物衍生物 有机氧化物 有机光子化合物 |
| 分子骨架(Molecular Framework) | 芳香族杂多环化合物 |
| 取代基(Substituents) | 1,3-氧杂噁嗪烷 - 烷醇胺 - 芳基醚 - 茴香醚 - 芳香族杂多环化合物 - 芳基氯化物 - 芳基卤化物 - 氮杂环 - 苯基化合物 - 脲酸酯 - 碳酸衍生物 - 羰基 - 羧酰胺基 - 羧酸衍生物 - 羧酸酰胺 - 二烷基醚 - 乙醚 - 烃衍生物 - 肟 - M-噻唑啉 - 单羧酸或其衍生物 - 有机硝基化合物 - 有机氧化物 - 有机氧化合物 - 有机氯化物 - 有机卤化物 - 有机杂环化合物 - 有机氮化合物 - 有机氧化合物 - 有机氮化合物 - 氧杂环 - 氧杂吡嗪烷 - 氧杂环丁烷 - 叔羧酸酰胺 |
| 描述(Description) | 该化合物属于大环内酰胺类有机化合物。这类化合物是氨基羧酸的环状酰胺,具有1-氮杂环烷-2-酮结构,或其环状结构中一个或多个碳原子被不饱和键或杂原子取代的类似物。它们是天然大环内酯类化合物的氮杂类似物(即氮原子取代环状羧酸基团中的氧原子)。 |
| 外部描述符(External Descriptors) | Macrolides and lactone polyketides |
| ALogP | 4.445 |
|---|---|
| hba_count | 8 |
| HBD Count | 1 |
| Rotatable Bond | 5 |
| 作用机制 | Action Type | target ID | Target Name | Target Type | Target Organism | Binding Site Name | 参考文献 |
|---|
H302: 吞食有害
H315: 引起皮肤刺激
H319: 引起严重眼睛刺激
H332: 吸入有害
H335: 可能引起呼吸道刺激
P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾
P264: 处理后要彻底洗手。
P301+P312: 如误吞咽:如感觉不适,呼叫急救中心/医生。
P302+P352: 如皮肤沾染:用水充分清洗。
P305+P351+P338: 如进入眼睛:用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出,取出隐形眼镜。继续冲洗。