Fosbretabulin Disodium

CAS号

168555-66-6

分子式

C18H19O82Na

主要靶点

Apoptosis|Microtubule Associated

仅限科研使用

Cat No : CM05127

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Synonyms

destabilizing|endothelia|Fosbretabulin|Fosbretabulin (Combretastatin A4 Phosphate (CA4P)) Disodium|Fosbretabulin Disodium|Apoptosis|Combretastatin A4 disodium|Combretastatin A4 disodium phosphate|Combretastatin A4 disodium Phosphate|Combretastatin A4 Phosphate|CA 4DP|CA 4P|Microtubule/Tubulin|Microtubule Associated|MicrotubuleAssociated|inhibit|Inhibitor|nascent|neovessels|福他布林|tubulin|Tubulin|tumour



产品信息

CAS号 168555-66-6
分子式 C18H19O82Na
主要靶点 Apoptosis|Microtubule Associated
主要通路 凋亡|细胞骨架
分子量 440.29
纯度 99.96%, 此纯度可做参考,具体纯度与批次有关系,可咨询客服
储存条件 store at low temperature | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice.
别名 destabilizing|endothelia|Fosbretabulin|Fosbretabulin (Combretastatin A4 Phosphate (CA4P)) Disodium|Fosbretabulin Disodium|Apoptosis|Combretastatin A4 disodium|Combretastatin A4 disodium phosphate|Combretastatin A4 disodium Phosphate|Combretastatin A4 Phosphate|CA 4DP|CA 4P|Microtubule/Tubulin|Microtubule Associated|MicrotubuleAssociated|inhibit|Inhibitor|nascent|neovessels|福他布林|tubulin|Tubulin|tumour

靶点活性

Tubulin:2.4 μM

体内活性

CA4P在实验性肿瘤模型中,通过单次给药,剂量为最大耐受剂量(MTD)的10%,可迅速、广泛且不可逆地导致血管关闭。CA4P在化合物给药后6小时内,可使血管体积减少93%。[2] CA4P(100 mg/kg,给药后6小时)使肿瘤血流量大约减少了100倍,而脾脏的血流量大约减少了7倍。[5]

体外活性

Fosbretabulin disodium(Combretastatin A-4 phosphate disodium, CA4P disodium)是可溶于水的前药,源自非洲树木Combretum caffrum的combretastatin A4(CA4)。CA4作为一种结合微管蛋白的剂量,在β-微管蛋白的秋水仙素结合位点或其附近结合(Kd = 0.40 μM),以IC50为2.4 μM抑制微管蛋白组装。[1] CA4对增殖中而非静止的内皮细胞具有细胞毒性,对肿瘤血管具有强大且选择性的毒性。[2] CA4P(1 mM, 30分钟)破坏了内皮细胞的微管骨架并影响其形态,通过Rho/Rho激酶路径引发细胞形态改变,促进肌动蛋白应力纤维的形成及膜泡化,增加细胞层的渗透性。[3] CA4P通过打断VE-cadherin/β-catenin/Akt信号路径主要抑制内皮细胞的迁移和毛细血管管形成,从而增加内皮细胞的渗透性,并导致快速的血管崩溃和肿瘤坏死。[4]

溶解度

DMSO:Insoluble;H2O:10 mM

细胞实验

For the proliferation assay, the minimal concentration of FBS (1%) diluted in X-VIVO medium is used to allow sufficient viability of endothelial cells. After detachment, the cells are seeded at a concentration of 2×104 HUVECs in each well of 24-well plates, allowed to adhere overnight, and then incubated with or without cytokines (5 ng/ml FGF-2 or 5 ng/ml VEGF-A). CA4P is added at 0 – 50 nM. After incubation for 12, 24, 36, and 48 hours, cells are detached by trypsin/EDTA and manually counted using trypan blue exclusion. (Only for Reference)

参考文献

1.Woods JA, et al. Br J Cancer 1995, 71(4), 705-711.
2.Dark GG, et al. Cancer Res 1997, 57(10), 1829-1834.
3.Kathou C, et al. Blood, 2002, 99(6), 2060-2069.
4.Vincent L, et al. J Clin Invest, 2005, 115(11), 21992-32006.
5.Tozer GM, et al. Cancer Res, 1999, 59(7), 1626-1634.

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