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| 靶点 |
BP-1-102 targets signal transducer and activator of transcription 3 (STAT3) (IC50 = 1.8 μM for STAT3 DNA-binding activity; IC50 = 2.2 μM for STAT3 phosphorylation inhibition) [1]
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| 体外研究 (In Vitro) |
BP-1-102 对 Stat3 的亲和力 KD 为 504 nM。在体外,Stat3 DNA 结合活性被 BP-1-102 抑制,IC50 值为 6.8±0.8 μM。它特异性抑制依赖于 Stat3 的肿瘤细胞的生长、存活、迁移和侵袭,并破坏 Stat3 和磷酸酪氨酸肽之间的相互作用,以及 4-6.8 μM 下 Stat3 的激活。 BP-1-102 抑制肿瘤细胞中异常活跃的 Stat3,从而降低 Krüppel 样因子 8、c-Myc、Cyclin D1、Bcl-xL、Survivin、VEGF 和 Cyclin D1 的表达[1]。
在人乳腺癌细胞系(MDA-MB-231、MCF-7、BT474)和肺癌细胞系(A549、H1299)中,BP-1-102(0.5–20 μM)以剂量依赖性方式抑制细胞增殖,IC50值范围为2.5–5.8 μM。三阴性乳腺癌细胞MDA-MB-231和非小细胞肺癌细胞A549敏感性最高(IC50 = 2.5–3.2 μM)[1] - 它阻断STAT3信号通路:减少STAT3(Tyr705)磷酸化和核转运(免疫荧光检测),抑制STAT3 DNA结合活性(电泳迁移率变动分析,EMSA),并在mRNA和蛋白水平下调STAT3靶基因(Bcl-2、Survivin、Cyclin D1)表达(qRT-PCR和Western blot检测)[1] - 在MDA-MB-231细胞中,BP-1-102(5 μM)诱导凋亡(Annexin V-FITC/PI染色显示凋亡率约48%),并减少克隆形成(克隆数较对照组减少约70%)[1] - 在IL-6(20 ng/mL)+ TNF-α(10 ng/mL)刺激的人结直肠癌细胞系(HT-29、HCT116)中,BP-1-102(1–10 μM)以剂量依赖性方式抑制细胞增殖(HT-29 IC50 = 3.6 μM;HCT116 IC50 = 4.1 μM)和STAT3(Tyr705)磷酸化(Western blot检测)。它还阻断IL-6 + TNF-α诱导的NF-κB(p65磷酸化)协同激活[2] |
| 体内研究 (In Vivo) |
BP-1-102(一种针对 STAT3/NF-kB 激活和串扰的口服药物)以治疗性喂养的小鼠表现出结肠癌发生减少以及肿瘤区域 STAT3/NF-kB 激活细胞因子的产生减少[2]。 BP -1-102 可口服,并且该药物在肿瘤组织中积聚的水平足以抑制异常活跃的 Stat3 作用并减少肿瘤生长[1]。
在三阴性乳腺癌皮下异种移植模型(裸鼠植入MDA-MB-231细胞)中,口服BP-1-102(50 mg/kg/天)持续21天,较溶媒对照组抑制肿瘤生长约68%。小鼠中位生存期从对照组的35天延长至62天[1] - 在非小细胞肺癌皮下异种移植模型(裸鼠植入A549细胞)中,口服BP-1-102(50 mg/kg/天)持续24天,肿瘤体积减少约72%,肿瘤重量减少约65%。免疫组织化学和Western blot检测显示,肿瘤组织中p-STAT3(Tyr705)、Bcl-2、Ki-67表达降低,切割型半胱天冬酶-3水平升高[1] |
| 酶活实验 |
STAT3 DNA结合活性实验:重组人STAT3蛋白(2 μM)与生物素标记的STAT3反应性DNA探针、反应缓冲液(20 mM Tris-HCl pH 7.5、100 mM NaCl、1 mM DTT、5%甘油)在室温孵育30分钟。探针孵育前加入浓度范围为0.1–10 μM的BP-1-102。非变性PAGE分离DNA-蛋白复合物,转移至膜上,链霉亲和素-辣根过氧化物酶检测。密度分析计算抑制率,确定IC50值[1]
- STAT3磷酸化抑制实验:MDA-MB-231细胞血清饥饿16小时,用BP-1-102(0.5–20 μM)预处理2小时,再用IL-6(20 ng/mL)刺激30分钟。细胞裂解后,Western blot检测p-STAT3(Tyr705)水平,根据p-STAT3抑制的剂量-反应曲线计算IC50[1] |
| 细胞实验 |
乳腺癌/肺癌细胞增殖及信号通路实验:MDA-MB-231/A549/MCF-7细胞(每孔5×10³个)接种于96孔板,用BP-1-102(0.5–20 μM)处理48小时。MTT法检测细胞活力以确定IC50。信号通路分析中,细胞用药物(5–10 μM)处理24小时后裂解,Western blot检测p-STAT3、STAT3、Bcl-2、Survivin、Cyclin D1和GAPDH[1]
- 凋亡及克隆形成实验:MDA-MB-231细胞(凋亡实验每孔1×10⁵个;克隆形成实验每孔1×10³个)接种于6孔板。凋亡实验中,细胞用BP-1-102(5 μM)处理24小时,Annexin V-FITC/PI染色后流式细胞仪分析。克隆形成实验中,细胞用药物(1–5 μM)处理14天(每3天换液),结晶紫染色,计数大于50个细胞的克隆[1] - 结直肠癌细胞增殖实验:HT-29/HCT116细胞(每孔5×10³个)接种于96孔板,用BP-1-102(1–10 μM)预处理1小时,再用IL-6(20 ng/mL)+ TNF-α(10 ng/mL)刺激48小时。CCK-8法检测细胞活力。Western blot分析p-STAT3(Tyr705)、STAT3、p-p65(NF-κB)和GAPDH[2] |
| 动物实验 |
BP-1-102 dissolved in 0.05% DMSO in water; 1 or 3mg/kg (i.v.) every 2 or every 3 d or 3 mg/kg (oral gavage, 100 μL) every day for 15 or 20 d.
Athymic nude mice with established tumors Triple-negative breast cancer xenograft model: Nude mice (4-week-old, female) were subcutaneously injected with MDA-MB-231 cells (5×10⁶ cells/mouse) into the right flank. When tumors reached ~120 mm³, mice were randomized into control (n = 6) and BP-1-102 treatment (n = 6) groups. The drug was dissolved in DMSO (5%) + 0.5% carboxymethylcellulose (CMC) + 0.1% Tween 80, administered orally at 50 mg/kg once daily for 21 days. Tumor volume (length×width²/2) and body weight were measured every 3 days; survival time was recorded [1] - Non-small cell lung cancer xenograft model: Nude mice (4-week-old, male) were subcutaneously injected with A549 cells (5×10⁶ cells/mouse). When tumors reached ~100 mm³, mice were divided into control (n = 6) and treatment (n = 6) groups. BP-1-102 was administered orally at 50 mg/kg once daily for 24 days. Tumor volume and body weight were measured every 3 days; tumors were excised for immunohistochemistry and Western blot [1] |
| 药代性质 (ADME/PK) |
Oral bioavailability: 45% in rats (determined by comparing plasma concentrations after oral and intravenous administration of 20 mg/kg) [1]
- Plasma half-life (t1/2): 2.8 hours in rats [1] - Plasma protein binding rate: 89% in human plasma, 87% in rat plasma (equilibrium dialysis assay) [1] - Tissue distribution: In rats, highest concentrations in liver (2.3-fold vs. plasma), lung (2.1-fold vs. plasma), and tumor tissues (1.9-fold vs. plasma); minimal penetration into the central nervous system (<1.2% of plasma concentration) [1] - Metabolism: Primarily metabolized via hepatic CYP2C9 and CYP3A4-mediated hydroxylation; no major active metabolites identified [1] - Excretion: 52% excreted in feces, 38% in urine within 72 hours post-administration in rats [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
In vitro toxicity: BP-1-102 at concentrations up to 20 μM shows no significant cytotoxicity to normal human mammary epithelial cells (HMEC) or lung fibroblasts (MRC-5) (cell viability >85% vs. control) [1]
- Acute toxicity: LD50 > 1000 mg/kg in rats and mice (oral administration); no mortality or severe toxic symptoms (lethargy, convulsions) observed at doses up to 1000 mg/kg [1] - Repeat-dose toxicity: In a 28-day study in rats (oral doses of 25, 50, 100 mg/kg/day), the drug was well-tolerated. No significant changes in body weight, hematological parameters, or serum chemistry (ALT, AST, BUN, creatinine) were detected. Histological examination of liver, kidney, heart, and lung revealed no abnormal lesions [1] |
| 参考文献 |
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| 其他信息 |
BP-1-102 is an orally bioavailable small-molecule inhibitor of STAT3 [1]
- Its mechanism of action involves binding to the SH2 domain of STAT3, inhibiting STAT3 dimerization and nuclear translocation, thereby blocking STAT3-mediated transcription of oncogenic target genes (Bcl-2, Survivin, Cyclin D1) [1] - In colorectal cancer cells, it abrogates IL-6/TNF-α synergistic activation of STAT3 and NF-κB, suppressing cell proliferation driven by pro-inflammatory cytokines [2] - Preclinical efficacy in breast, lung, and colorectal cancer models supports its potential as a therapeutic agent for STAT3-activated solid tumors [1,2] - It exhibits favorable oral bioavailability and low toxicity, making it suitable for oral administration in clinical settings [1] |
| 分子式 |
C29H27F5N2O6S
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| 分子量 |
626.59
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| 精确质量 |
626.151
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| CAS号 |
1334493-07-0
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| 相关CAS号 |
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| PubChem CID |
53388144
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| 外观&性状 |
White to off-white solid powder
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| 密度 |
1.5±0.1 g/cm3
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| 沸点 |
749.2±70.0 °C at 760 mmHg
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| 闪点 |
406.9±35.7 °C
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| 蒸汽压 |
0.0±2.6 mmHg at 25°C
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| 折射率 |
1.601
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| LogP |
7.77
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| tPSA |
124
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| 氢键供体(HBD)数目 |
2
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| 氢键受体(HBA)数目 |
12
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| 可旋转键数目(RBC) |
9
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| 重原子数目 |
43
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| 分子复杂度/Complexity |
1050
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| 定义原子立体中心数目 |
0
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| InChi Key |
WNVSFFVDMUSXSX-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C29H27F5N2O6S/c1-35(43(41,42)28-26(33)24(31)23(30)25(32)27(28)34)15-22(38)36(19-11-12-20(29(39)40)21(37)13-19)14-16-7-9-18(10-8-16)17-5-3-2-4-6-17/h7-13,17,37H,2-6,14-15H2,1H3,(H,39,40)
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| 化学名 |
4-[(4-cyclohexylphenyl)methyl-[2-[methyl-(2,3,4,5,6-pentafluorophenyl)sulfonylamino]acetyl]amino]-2-hydroxybenzoic acid
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| 别名 |
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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 |
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| 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) |
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| 溶解度 (体内实验) |
配方 1 中的溶解度: ≥ 2.5 mg/mL (3.99 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 (3.99 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 | 1.5959 mL | 7.9797 mL | 15.9594 mL | |
| 5 mM | 0.3192 mL | 1.5959 mL | 3.1919 mL | |
| 10 mM | 0.1596 mL | 0.7980 mL | 1.5959 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) 。
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