BAY1082439
(Synonyms: N-[8-[[(2R)-2-羟基-3-(吗啉-4-基)丙基]氧基]-7-甲氧基-2,3-二氢咪唑并[1,2-C]喹唑啉-5-基]-2-甲基吡啶-3-甲酰胺) 目录号 : GC62164
An inhibitor of PI3Kα, PI3Kβ, and PI3Kδ
Cas No.:1375469-38-7
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
BAY-1082439 is an inhibitor of PI3Kα, PI3Kβ, and PI3Kδ (IC50s = 5, 15, and 1 nM, respectively).1 It is selective for PI3Kα, -β, and -δ over PI3Kγ (IC50 = 52 nM). BAY-1082439 selectively inhibits proliferation of PTEN-null LNCaP and PC3 prostate cancer cells over wild-type PTEN isogenic PC3 cells. BAY-1082439 (75 mg/kg) decreases intratumoral levels of phosphorylated Akt and reduces tumor growth in a mouse model of castration-resistant prostate cancer using castrated Pten conditional knockout mice (Pten-null mice). Intermittent administration of BAY-1082439 (180 mg/kg) reverses resistance to an anti-PD-1 antibody and induces CD8+ T cell clonal expansion and T cell-mediated inflammation in the tumor microenvironment in castrated Pten-null mice.2
1.Zou, Y., Qi, Z., Guo, W., et al.Cotargeting the cell-intrinsic and microenvironment pathways of prostate cancer by PI3Kα/β/δ inhibitor BAY1082439Mol. Cancer Ther.17(10)2091-2099(2018) 2.Qi, J., Xu, Z., Zhang, L., et al.Overcoming resistance to immune checkpoint therapy in PTEN-null prostate cancer by intermittent anti-PI3Kα/β/δ treatmentNat. Commun.13(1)182(2022)
| Cas No. | 1375469-38-7 | SDF | |
| 别名 | N-[8-[[(2R)-2-羟基-3-(吗啉-4-基)丙基]氧基]-7-甲氧基-2,3-二氢咪唑并[1,2-C]喹唑啉-5-基]-2-甲基吡啶-3-甲酰胺 | ||
| 分子式 | C25H30N6O5 | 分子量 | 494.54 |
| 溶解度 | DMSO : 5 mg/mL (10.11 mM; ultrasonic and adjust pH to 5 with HCl) | 储存条件 | Store at -20°C |
| General tips | 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°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.0221 mL | 10.1104 mL | 20.2208 mL |
| 5 mM | 0.4044 mL | 2.0221 mL | 4.0442 mL |
| 10 mM | 0.2022 mL | 1.011 mL | 2.0221 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
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，
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 saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Overcoming resistance to immune checkpoint therapy in PTEN-null prostate cancer by intermittent anti-PI3Kα/β/δ treatment
Nat Commun 2022 Jan 10;13(1):182.PMID:35013322DOI:10.1038/s41467-021-27833-0.
Combining immune checkpoint therapy (ICT) and targeted therapy holds great promises for broad and long-lasting anti-cancer therapies. However, combining ICT with anti-PI3K inhibitors have been challenging because the multifaceted effects of PI3K on both cancer cells and immune cells within the tumor microenvironment. Here we find that intermittent but not daily dosing of a PI3Kα/β/δ inhibitor, BAY1082439, on Pten-null prostate cancer models could overcome ICT resistance and unleash CD8+ T cell-dependent anti-tumor immunity in vivo. Mechanistically, BAY1082439 converts cancer cell-intrinsic immune-suppression to immune-stimulation by promoting IFNα/IFNγ pathway activation, β2-microglubin expression and CXCL10/CCL5 secretion. With its preferential regulatory T cell inhibition activity, BAY1082439 promotes clonal expansion of tumor-associated CD8+ T cells, most likely via tertiary lymphoid structures. Once primed, tumors remain T cell-inflamed, become responsive to anti-PD-1 therapy and have durable therapeutic effect. Our data suggest that intermittent PI3K inhibition can alleviate Pten-null cancer cell-intrinsic immunosuppressive activity and turn "cold" tumors into T cell-inflamed ones, paving the way for successful ICT.
Cotargeting the Cell-Intrinsic and Microenvironment Pathways of Prostate Cancer by PI3Kα/β/δ Inhibitor BAY1082439
Mol Cancer Ther 2018 Oct;17(10):2091-2099.PMID:30045927DOI:10.1158/1535-7163.MCT-18-0038.
Targeting the PI3K pathway is a promising strategy for treating prostate cancers with PTEN-loss. However, current anti-PI3K therapies fail to show long lasting in vivo effects. We find that not only the PI3Kα- and PI3kβ-isoforms, but also PI3Kδ, are associated with the epithelial-mesenchymal transition (EMT), a critical process distinguishing indolent from aggressive prostate cancer. This suggests that cotargeting PI3Kα/β/δ could preempt the rebound activation of the parallel pathways induced by α- or β-isoform-selective inhibitor and prevent EMT. Indeed, BAY1082439, a new selective PI3Kα/β/δ inhibitor, is highly effective in vivo in inhibiting Pten-null prostate cancer growth and preventing EMT in the mutant Pten/Kras metastatic model. The anti-PI3Kδ property of BAY1082439 further blocks B-cell infiltration and lymphotoxin release, which are tumor microenvironment factors that promote castration-resistant growth. Together, our data suggest a new approach for the treatment of prostate cancer by targeting both tumor cells and tumor microenvironment with PI3Kα/β/δ inhibitor. Mol Cancer Ther; 17(10); 2091-9. ©2018 AACR.