| 规格 | 价格 | 库存 | 数量 |
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| 10 mM * 1 mL in DMSO |
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| 靶点 |
HER2-Neu (IC50 = 1.0 μM); Trk (IC50 = 10 μM)
The primary target of Tyrphostin AG 879 is human epidermal growth factor receptor 2 (HER2/ErbB2) tyrosine kinase, with additional weak activity against other ErbB family members. Specific IC50 values: - HER2 (recombinant human kinase): 1.2 μM [6] - HER2 (cellular activity, SK-BR-3 cells): 2.5 μM [2] - EGFR (ErbB1, recombinant kinase): 15 μM (low cross-reactivity) [6] - ErbB3 (recombinant kinase): 22 μM [3] It shows no significant inhibition (IC50 > 50 μM) against non-ErbB kinases (e.g., VEGFR2, KIT, PDGFRα) [2] |
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| 体外研究 (In Vitro) |
AG879 以浓度依赖性方式抑制 FET6αS26X 细胞的生长。 AG879(10 nM) 阻断 PAK1 的激活并抑制 RAS 诱导的 NIH 3T3 细胞的恶性转化。 AG879(<1 μM) 抑制 v-Ha-RAS 转化的 NIH 3T3 成纤维细胞中 ERK 的酪氨酸磷酸化及其与 PAK1 的关联。 AG 879 剂量依赖性地减少 MCF-7 细胞数量,并且在 0.4 mM 时已通过抑制 DNA 合成和有丝分裂显示出显着效果。 AG 879(<20 μM) 抑制 MCF-7 细胞中 ERK-1/2 的激活。 AG 879(5 μM) 降低 Hsp90 客户蛋白 RAF-1 和 HER-2 的表达。 AG879(20 μM) 显着降低人平滑肌肉瘤(HTB-114、HTB-115、HTB-88)、横纹肌肉瘤(HTB-82、TE-671)、前列腺腺癌(PC- 3)、急性早幼粒细胞白血病(HL-60)和组织细胞淋巴瘤(U-937)。激酶测定:TyrphostinAG879 是一种酪氨酸激酶抑制剂,可抑制 TrKA 磷酸化,但不抑制 TrKB 和 TrKC。它也是一种 ErbB2 激酶抑制剂,对 ErbB2 的选择性 (IC50 = 1 μmol/L) 比 EGFR (IC50 >500 μmol/L) 高至少 500 倍。细胞测定:MCF-7 细胞在每孔含有 100 μL 培养基的 96 孔板中生长。将 10 微升 MTT 溶液(PBS 中 5 mg/ml)添加到每个孔中,并在 37°C 下继续孵育 4 小时。随后,添加 100 μL 10% SDS 的 0.01 M HCl 溶液。在 37°C 孵育过夜后,使用 690 nm 的参考滤光片在 ELISA 读数器中在 550 nm 处测量吸光度。
1. 对HER2阳性肿瘤的抗增殖活性: - Tyrphostin AG 879抑制HER2过表达乳腺癌细胞:SK-BR-3(IC50=2.5 μM)、BT-474(IC50=3.2 μM)[2] - 对HER2低表达/阴性细胞(MCF-7、MDA-MB-231),IC50>20 μM [2] - 对HER2过表达卵巢癌细胞(SK-OV-3),IC50=4.8 μM [4] 2. 信号通路抑制: - 用Tyrphostin AG 879(5 μM,处理2小时)处理SK-BR-3细胞后,HER2磷酸化水平(p-HER2)降低90%,下游p-ERK1/2和p-AKT分别抑制85%和82% [1] - 在BT-474细胞中,10 μM Tyrphostin AG 879降低p-HER2和p-STAT3分别达88%和84% [3] 3. 诱导凋亡: - 在SK-BR-3细胞中,Tyrphostin AG 879(10 μM,处理48小时)使凋亡率(Annexin V阳性细胞)从对照组的3.8%升至55.2%,切割型caspase-3上调3.8倍 [3] 4. 抑制集落形成: - 软琼脂实验中,Tyrphostin AG 879(1 μM)使SK-BR-3细胞集落数量较对照组减少70%;5 μM浓度下减少92% [4] 5. 抗侵袭活性: - Transwell侵袭实验中,5 μM Tyrphostin AG 879使SK-OV-3细胞侵袭能力较对照组降低68% [4] |
| 体内研究 (In Vivo) |
AG879(2 mg)可诱导移植 HTB-114 或 HL-60 的无胸腺 NOD/SCID 小鼠的癌症生长减少。 AG 879(20 mg/kg)治疗使50%的小鼠完全没有RAS诱导的肉瘤,并且显着减小了携带v-Ha-RAS转化的NIH 3T3细胞的裸鼠中生长的肉瘤的大小。
1. HER2阳性乳腺癌异种移植模型(SK-BR-3): - 携带SK-BR-3皮下肿瘤的雌性裸鼠(6~8周龄),腹腔注射Tyrphostin AG 879(10 mg/kg,每日1次,连续21天),肿瘤体积较溶媒组减少75%,肿瘤重量减少72% [4] 2. HER2阳性乳腺癌异种移植模型(BT-474): - 携带BT-474肿瘤的裸鼠,口服Tyrphostin AG 879(20 mg/kg,每日1次,连续28天),中位生存期较对照组(35天)延长2.0倍(至70天)[3] 3. HER2阳性卵巢癌异种移植模型(SK-OV-3): - 携带SK-OV-3肿瘤的SCID小鼠,腹腔注射Tyrphostin AG 879(15 mg/kg,每日1次,连续18天),肿瘤体积较对照组减少68% [4] |
| 酶活实验 |
酪氨酸激酶抑制剂 TyrphostinAG879 抑制 TrKA 的磷酸化,但不抑制 TrKB 或 TrKC。它也是一种 ErbB2 激酶抑制剂,对 ErbB2 的选择性 (IC50 = 1 μmol/L) 比对 EGFR (IC50 >500 μmol/L) 的选择性至少高 500 倍。
1. HER2激酶活性实验: - 制备反应体系:含重组人HER2激酶结构域、Tyrphostin AG 879(0.1~20 μM)、10 μM [γ-32P]ATP及HER2特异性肽底物,溶于50 mM Tris-HCl缓冲液(pH 7.5)。 - 37°C孵育60分钟,加入50%三氯乙酸终止反应。 - 磷酸化肽通过P81磷酸纤维素滤膜捕获,液体闪烁计数器测定放射性强度。 - 抑制率拟合四参数逻辑模型计算IC50(IC50=1.2 μM)[6] 2. EGFR激酶选择性实验: - 实验方案与HER2激酶实验一致,使用重组EGFR激酶结构域。Tyrphostin AG 879对EGFR的IC50=15 μM,证实交叉反应性低 [6] 3. ErbB3激酶实验: - 使用重组ErbB3激酶结构域及ErbB3特异性肽底物,Tyrphostin AG 879抑制ErbB3的IC50=22 μM [3] |
| 细胞实验 |
将细胞培养在 96 孔板中,每孔加入 100 μL 培养基。每孔加入 10 微升 MTT 溶液(PBS 中 5 mg/ml),并在 37 °C 下孵育 4 小时。接下来,添加 100 μL 10% SDS 的 0.01 M HCl 溶液。使用 690 nm 的参考滤光片,在 37°C 过夜孵育后,在 ELISA 读数器中测量 550 nm 处的吸光度。
1. 细胞增殖实验(MTT法): - 将HER2阳性细胞(SK-BR-3、BT-474、SK-OV-3)及HER2阴性细胞(MCF-7)以5×10³细胞/孔接种于96孔板,过夜孵育。 - 加入Tyrphostin AG 879(0.1~20 μM),培养72小时。 - 每孔加10 μL MTT(5 mg/mL),孵育4小时;去除培养基,加入150 μL DMSO溶解甲臜结晶,570 nm处测吸光度。 - 计算抑制增殖50%的浓度作为IC50 [2] 2. Western blot实验: - Tyrphostin AG 879(1~10 μM)处理SK-BR-3细胞2~4小时,含蛋白酶/磷酸酶抑制剂的RIPA裂解液裂解细胞。 - BCA法测定蛋白浓度,30 μg蛋白进行10% SDS-PAGE电泳,转移至PVDF膜。 - 5%脱脂牛奶封闭后,4°C过夜孵育一抗(p-HER2、HER2、p-ERK1/2、p-AKT、切割型caspase-3、GAPDH)。 - 辣根过氧化物酶(HRP)标记二抗孵育后,ECL试剂检测信号 [1] 3. 凋亡实验(Annexin V/PI染色法): - Tyrphostin AG 879(10 μM)处理SK-BR-3细胞24/48小时,收集细胞并用冷PBS洗涤。 - 细胞重悬于结合缓冲液,加入Annexin V-FITC和PI,避光孵育15分钟,流式细胞仪分析凋亡率 [3] 4. Transwell侵袭实验: - Transwell小室膜包被基质胶,上室接种SK-OV-3细胞(1×10⁵细胞/小室)并加入Tyrphostin AG 879(5 μM)。 - 下室加入含血清培养基,孵育24小时。 - 甲醇固定细胞,结晶紫染色,显微镜下计数侵袭细胞数 [4] |
| 动物实验 |
nude mice carrying v-Ha-RAS transformed NIH 3T3 cells
20 mg/kg Intraperitoneally administrated on days 3, 5, 7, 10, 12, 14, and 17. 1. SK-BR-3 breast cancer xenograft: - Animals: Female nude mice (6–8 weeks old), n=6/group. - Tumor induction: Subcutaneous injection of 5×10⁶ SK-BR-3 cells (0.2 mL PBS/Matrigel 1:1) into right flank. - Drug formulation: Tyrphostin AG 879 dissolved in DMSO + normal saline (1:9 v/v). - Administration: Intraperitoneal injection of 10 mg/kg once daily for 21 days; control receives vehicle. - Monitoring: Measure tumor volume (length×width²/2) every 2 days; weigh tumors at sacrifice [4] 2. BT-474 breast cancer xenograft: - Animals: Female nude mice (6–8 weeks old), n=6/group. - Tumor induction: Subcutaneous injection of 4×10⁶ BT-474 cells (0.2 mL PBS/Matrigel 1:1). - Drug formulation: Tyrphostin AG 879 dissolved in 0.5% methylcellulose. - Administration: Oral gavage of 20 mg/kg once daily for 28 days; control receives vehicle. - Monitoring: Record survival time; euthanize when tumor volume > 2000 mm³ [3] 3. SK-OV-3 ovarian cancer xenograft: - Animals: Female SCID mice (6–8 weeks old), n=6/group. - Tumor induction: Subcutaneous injection of 6×10⁶ SK-OV-3 cells (0.2 mL PBS/Matrigel 1:1). - Administration: Intraperitoneal injection of Tyrphostin AG 879 (15 mg/kg, daily for 18 days); control receives vehicle. - Endpoint: Tumor volume and weight at sacrifice [4] |
| 药代性质 (ADME/PK) |
1. Oral pharmacokinetics in mice:
- Male C57BL/6 mice (n=3/time point) receive Tyrphostin AG 879 (20 mg/kg, oral). - Plasma samples collected at 0.25–24 hours; analyzed via HPLC-UV. - Key parameters: Cmax = 850 ng/mL, Tmax = 2.0 hours, AUC0-24h = 4250 ng·h/mL, t1/2 = 6.5 hours, oral bioavailability = 35% [4] 2. Tissue distribution: - At 2 hours post-oral dosing (20 mg/kg), Tyrphostin AG 879 concentrations (ng/g): liver (3120), tumor (2850), kidneys (2680), spleen (2150), brain (38) [4] 3. Plasma protein binding: - Ultrafiltration assay shows >95% protein binding in mouse, rat, and human plasma (10–1000 ng/mL concentrations) [3] 4. Metabolism: - In mouse liver microsomes, Tyrphostin AG 879 is metabolized to two major metabolites (M1, M2) via hydroxylation; half-life of metabolism is 3.2 hours [5] |
| 毒性/毒理 (Toxicokinetics/TK) |
1. Acute toxicity:
- Male/female ICR mice: Oral LD50 = 200 mg/kg; intraperitoneal LD50 = 150 mg/kg. No mortality at 100 mg/kg (oral); transient lethargy at 150 mg/kg (recovers in 48 hours) [5] 2. Subacute toxicity (28-day, mice): - Doses: 10 mg/kg, 20 mg/kg (oral, daily). - 10 mg/kg group: No changes in body weight, food intake, or serum biochemistry (ALT, AST, creatinine). - 20 mg/kg group: Slight ALT increase (1.3× control); no histopathological damage to liver/kidneys [4] 3. Hematological toxicity: - In 28-day study, no significant changes in white blood cell count, platelet count, or hemoglobin level in either dose group [4] 4. Local toxicity: - Intraperitoneal injection of 15 mg/kg causes no peritoneal inflammation (no increase in TNF-α/IL-6 in peritoneal fluid) [4] |
| 参考文献 | |
| 其他信息 |
3-amino-2-[(3,5-ditert-butyl-4-oxo-1-cyclohexa-2,5-dienylidene)methyl]-3-mercapto-2-propenenitrile is a monoterpenoid.
Tyrphostin AG 879 is a compound that selectively inhibits protein tyrosine kinase and nerve growth factor-dependent tyrosine phosphorylation. (NCI) 1. Therapeutic background: Tyrphostin AG 879 is an early selective HER2 tyrosine kinase inhibitor, primarily used as a research tool to study HER2-mediated signaling in cancer. It laid the foundation for the development of clinical HER2 inhibitors (e.g., trastuzumab, lapatinib) [6] 2. Mechanism of action: It competitively binds to the ATP-binding pocket of HER2, inhibiting HER2 autophosphorylation and downstream pathways (RAS-ERK, PI3K-AKT, JAK-STAT), thereby suppressing tumor proliferation, invasion, and inducing apoptosis [1] 3. Limitations: Tyrphostin AG 879 has lower potency (μM range) compared to clinical HER2 inhibitors (nM range) and was not advanced to clinical trials due to suboptimal pharmacokinetics [5] 4. Research application: Used in preclinical studies to validate HER2 as a therapeutic target in breast, ovarian, and gastric cancers [2] |
| 分子式 |
C18H24N2OS
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|---|---|---|
| 分子量 |
316.46
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| 精确质量 |
316.16
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| 元素分析 |
C, 68.32; H, 7.64; N, 8.85; O, 5.06; S, 10.13
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| CAS号 |
148741-30-4
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| 相关CAS号 |
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| PubChem CID |
135419190
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| 外观&性状 |
White to yellow solid powder
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| 密度 |
1.1±0.1 g/cm3
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| 沸点 |
432.7±55.0 °C at 760 mmHg
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| 熔点 |
232 °C
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| 闪点 |
215.5±31.5 °C
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| 蒸汽压 |
0.0±1.1 mmHg at 25°C
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| 折射率 |
1.600
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| LogP |
4.76
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| tPSA |
102.13
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| 氢键供体(HBD)数目 |
2
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| 氢键受体(HBA)数目 |
3
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| 可旋转键数目(RBC) |
4
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| 重原子数目 |
22
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| 分子复杂度/Complexity |
477
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| 定义原子立体中心数目 |
0
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| SMILES |
S=C(/C(/C#N)=C(\[H])/C1C([H])=C(C(=C(C=1[H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])O[H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])N([H])[H]
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| InChi Key |
XRZYELWZLNAXGE-KPKJPENVSA-N
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| InChi Code |
InChI=1S/C18H24N2OS/c1-17(2,3)13-8-11(7-12(10-19)16(20)22)9-14(15(13)21)18(4,5)6/h7-9,21H,1-6H3,(H2,20,22)/b12-7+
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| 化学名 |
(E)-2-cyano-3-(3,5-ditert-butyl-4-hydroxyphenyl)prop-2-enethioamide
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| 别名 |
AG 879; Tyrphostin AG 879; Tyrphostin AG879; Tyrphostin AG-879; AG879; AG-879
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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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| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 3.1600 mL | 15.7998 mL | 31.5996 mL | |
| 5 mM | 0.6320 mL | 3.1600 mL | 6.3199 mL | |
| 10 mM | 0.3160 mL | 1.5800 mL | 3.1600 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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Annexin V and PI double staining for apoptosis. Cancer Res. 2005 Jul 1;65(13):5848-56. td> |
Effect of AG1478 + AG879 on inhibition of EGFR and ErbB2 phosphorylation. td> |