计算溶液所需的质量、体积或浓度。
| 活性类型 | 活性值-log(M) | 作用机制 | 期刊 | 参考文献(PubMed IDs) |
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Moligand™ 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
PF-04691502是高效选择性PI3K/mTOR (FRAP)双重抑制剂,抑制Akt T308 (IC50 = 7.5 nM)和Akt S473 (IC50 = 3.8 nM)的磷酸化。
PI3Ks是参与细胞功能的酶家族,如细胞生长、增殖、分化、运动、存活和胞内运输,从而也参与癌症。PI3Ks的功能大多与1类PI3K 在PI3K/AKT/mTOR通路中激活蛋白激酶B (PKB,亦称Akt)相关,此信号通路与细胞静止、增殖、癌症和永生直接相关。此通路中有诸多有价值的抗癌药物治疗靶点。p110δ和p110γ亚型调节免疫应答的不同方面。
PF-04691502是一种有潜能的药物,由荧光偏振激酶试验、细胞、小鼠和其他动物试验得出PF-04691502的功能为抑制PI3K/AKT/mTOR通路中的1类PI3K和mTOR,此外,由此抑制作用,PF-04691502能抑制肿瘤。PF-04691502短时间处理能显著抑制PI3K,而对mTOR的抑制作用需要持续24-48小时。PF-04691502诱导细胞周期G1期停滞,伴随p27 Kip1的上调和Rb的下调。PF-04691502的抗肿瘤活性已在U87 (PTEN null)、SKOV3 (PIK3CA 突变)、耐gefitinib和erlotinib的非小细胞肺癌异种移植物中观察到。PF-04691502在第七天抑制肿瘤生长达到72%。FDG-PET成像表明PF-04691502显著降低葡萄糖代谢。PF-04691502处理也能显著抑制PI3K/mTOR通路活性的组织标志物p-AKT (S473)和p-RPS6 (S240/244)。
Information
PF-04691502 (PF4691502) is an ATP-competitivePI3K(α/β/δ/γ)/mTORdual inhibitor withKiof 1.8 nM/2.1 nM/1.6 nM/1.9 nM and 16 nM in cell-free assays, little activity against either Vps34, AKT, PDK1, p70S6K, MEK, ERK, p38, or JNK. PF-04691502 inducesapoptosis.
In vitro
PF-04691502 potently inhibits recombinant class I PI3K and mTOR in biochemical assays and suppresses transformation of avian fibroblasts mediated by wild-type PI3K γ, δ, or mutant PI3Kα. In PIK3CA-mutant and PTEN-deleted cancer cell lines, PF-04691502 reduces phosphorylation of AKT T308 and AKT S473 (IC(50) of 7.5-47 nM and 3.8-20 nM, respectively) and inhibits cell proliferation (IC(50) of 179-313 nM). PF-04691502 inhibits mTORC1 activity in cells as measured by PI3K-independent nutrient stimulated assay, with an IC(50) of 32 nM and inhibits the activation of PI3K and mTOR downstream effectors including AKT, FKHRL1, PRAS40, p70S6K, 4EBP1, and S6RP. Short-term exposure to PF-04691502 predominantly inhibits PI3K, whereas mTOR inhibition persists for 24 to 48 hours. PF-04691502 induces cell cycle G(1) arrest, concomitant with upregulation of p27 Kip1 and reduction of Rb.
In vivo
Antitumor activity of PF-04691502 is observed in U87 (PTEN ), SKOV3 (PIK3CA mutation), and gefitinib- and erlotinib-resistant non-small cell lung carcinoma xenografts. PF-04691502 inhibits tumor growth at 7 days by 72%. FDG-PET imaging revealed that PF-04691502 reduces glucose metabolism dramatically. Tissue biomarkers of PI3K/mTOR pathway activity, p-AKT (S473), and p-RPS6 (S240/244), are also dramatically inhibited following PF-04691502 treatment.
Cell Data
cell lines:
Concentrations:0-3 mM
Incubation Time:3 days
Powder Purity:≥98%
| ALogP | 1.6 |
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | P408101 |