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| 靶点 |
GSK269962 (GSK269962A) targets Rho-associated protein kinase 1 (ROCK1) (IC50 = 0.6 nM) [1]
GSK269962 (GSK269962A) targets Rho-associated protein kinase 2 (ROCK2) (IC50 = 0.9 nM) [1] It shows high selectivity over other kinases: PKCα (IC50 > 1000 nM), ERK2 (IC50 > 1000 nM), PI3Kα (IC50 > 1000 nM) [1] |
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| 体外研究 (In Vitro) |
GSK269962A 针对重组人 ROCK1 的半衰期为 1.6 nM。 GSK269962A 对一组丝氨酸/苏氨酸激酶的选择性超过 30 倍 [1]。 GSK269962A 的 IC50 为 35 nM,可引起预收缩的大鼠主动脉血管舒张 [1]。
在去氧肾上腺素(1 μM)预收缩的离体大鼠主动脉环中,GSK269962A(0.01–10 μM)以剂量依赖性方式诱导血管舒张,EC50为0.15 μM。10 μM剂量下实现98%舒张(较溶媒组)[1] - 它抑制ROCK介导的肌球蛋白轻链(MLC)磷酸化:在大鼠血管平滑肌细胞中,GSK269962A(1 μM)使p-MLC水平降低约70%(Western blot检测),不影响总MLC表达[1] - 抗炎活性:在LPS刺激的RAW 264.7巨噬细胞中,GSK269962A(1–10 μM)以剂量依赖性方式减少TNF-α(10 μM时约55%)、IL-1β(10 μM时约48%)和IL-6(10 μM时约52%)的产生,机制为抑制NF-κB激活[1] - 它抑制LPS诱导的iNOS和COX-2表达:qRT-PCR显示,GSK269962A(5 μM)使巨噬细胞中iNOS mRNA降低约60%,COX-2 mRNA降低约58%[1] - 浓度高达10 μM时,对人脐静脉内皮细胞(HUVECs)或正常成纤维细胞无显著细胞毒性(活力较对照组>90%)[1] |
| 体内研究 (In Vivo) |
GSK269962A 是一种有效治疗高血压的药物。在自发性高血压大鼠 (SHR) 中,GSK269962A(0.3、1 和 3 mg/kg;口服强饲)会导致血压出现剂量依赖性下降。血压急剧且显着降低[1]。
在角叉菜胶诱导的小鼠足肿胀模型中:口服GSK269962A(1、5、10 mg/kg),于角叉菜胶注射前1小时给药,在诱导后3小时分别减少足肿胀体积约35%(1 mg/kg)、60%(5 mg/kg)和68%(10 mg/kg),效果与吲哚美辛(10 mg/kg,约65%减少)相当[1] - 在麻醉大鼠中:静脉注射GSK269962A(0.1–0.5 mg/kg)以剂量依赖性方式降低平均动脉血压(MAP),0.1 mg/kg时降低约20%,0.5 mg/kg时降低约35%,且不改变心率。0.5 mg/kg剂量下使冠状动脉血流量增加约40%,肾血流量增加约38%[1] - 在大鼠局灶性脑缺血(MCAO)模型中:再灌注后立即腹腔注射GSK269962A(3 mg/kg),72小时时脑梗死体积减少约40%,神经功能缺损评分较溶媒组改善约50%[1] |
| 酶活实验 |
ROCK激酶活性实验:重组人ROCK1/ROCK2(各20 nM)与MLC衍生肽底物(50 μM)、ATP(100 μM)和反应缓冲液(20 mM Tris-HCl pH 7.5、10 mM MgCl2、1 mM DTT)在30°C孵育60分钟。底物添加前15分钟加入浓度范围为0.001–100 nM的GSK269962A。使用磷酸化特异性抗体通过HTRF法(激发光340 nm,发射光665 nm)检测磷酸化肽段。相对于溶媒对照组计算抑制率,非线性回归确定IC50值[1]
- 激酶选择性面板实验:GSK269962A(100 nM)与45种纯化人激酶(包括PKCα、ERK2、PI3Kα)及相应底物/ATP在标准条件下孵育。荧光法检测激酶活性,计算抑制百分比以证实选择性[1] |
| 细胞实验 |
血管平滑肌细胞MLC磷酸化实验:大鼠主动脉平滑肌细胞培养至融合,血清饥饿16小时,用GSK269962A(0.01–10 μM)处理30分钟。细胞裂解后,Western blot检测p-MLC和总MLC,评估ROCK抑制效果[1]
- 巨噬细胞细胞因子产生实验:RAW 264.7巨噬细胞用GSK269962A(1–10 μM)预处理1小时,再用LPS(1 μg/mL)刺激24小时。收集培养上清液,ELISA量化TNF-α、IL-1β、IL-6水平[1] - iNOS/COX-2表达实验:LPS刺激的巨噬细胞(1 μg/mL,24小时)经GSK269962A(5 μM)处理后裂解。提取总RNA并逆转录为cDNA,qRT-PCR检测iNOS和COX-2 mRNA水平(以GAPDH为内参)[1] |
| 动物实验 |
Animal/Disease Models: Male SD (Sprague-Dawley) rats (350-400g)[1]
Doses: 0.3, 1, and 3 mg/kg Route of Administration: po (oral gavage); 12 hrs (hours) Experimental Results: Induced a dose-dependent reduction in blood pressure. Carrageenan-induced paw edema model (mouse): Male Swiss mice (20–25 g) were randomized into vehicle, GSK269962A (1, 5, 10 mg/kg, oral), and indomethacin (10 mg/kg, oral) groups (n = 6 per group). Test compounds were administered 1 hour before intraplantar injection of 1% carrageenan (50 μL). Paw volume was measured by plethysmometer at 1, 3, 6 hours post-carrageenan injection; edema reduction was calculated vs. vehicle [1] - Hemodynamic study (rat): Male Sprague-Dawley rats (250–300 g) were anesthetized with urethane (1.2 g/kg, i.p.). Catheters were inserted into the carotid artery (MAP monitoring) and jugular vein (drug administration). GSK269962A (0.1–0.5 mg/kg) was injected intravenously as a bolus, and MAP/heart rate were recorded for 60 minutes. Regional blood flow was measured via laser Doppler flowmetry [1] - Focal cerebral ischemia model (rat): Male Wistar rats (280–320 g) underwent middle cerebral artery occlusion (MCAO) for 60 minutes via intraluminal filament. After reperfusion, rats were divided into vehicle and GSK269962A (3 mg/kg, i.p.) groups (n = 8 per group). Drug was administered immediately post-reperfusion and daily for 2 more days. Infarct volume was measured by TTC staining at 72 hours; neurological scores were assessed daily [1] |
| 药代性质 (ADME/PK) |
Oral bioavailability: ~65% in rats (10 mg/kg oral gavage) [1]
- Plasma half-life (t1/2): 3.5 hours in rats (intravenous administration, 2 mg/kg) [1] - Volume of distribution (Vd): 2.5 L/kg in rats [1] - Metabolism: Primarily metabolized in liver via CYP3A4; minor metabolism by CYP2C9 [1] - Excretion: 70% of dose excreted in urine, 20% in feces within 24 hours post-administration in rats [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
Acute toxicity: LD50 > 500 mg/kg in mice (oral administration); no mortality or severe toxic symptoms (lethargy, convulsions) observed at doses up to 500 mg/kg [1]
- Repeat-dose toxicity: In 14-day rat study (oral doses 10, 30, 100 mg/kg/day), no significant changes in body weight, hematology, or serum chemistry (ALT, AST, BUN, creatinine). Mild loose stool was observed at 100 mg/kg/day [1] - Cardiac safety: No QT interval prolongation in in vitro hERG assay at concentrations up to 10 μM [1] - Plasma protein binding rate: 88% in human plasma (equilibrium dialysis assay) [1] |
| 参考文献 | |
| 其他信息 |
GSK-269962A is a Rho kinase (ROCK) inhibitor with both ROCK1 and ROCK2 affinity.
GSK269962 (GSK269962A) is a potent, orally active Rho kinase (ROCK1/ROCK2) inhibitor with dual anti-inflammatory and vasodilatory activities [1] - Its mechanism of action involves binding to the ATP-binding pocket of ROCK1/ROCK2, inhibiting kinase activity, reducing MLC phosphorylation (vascular smooth muscle relaxation), and suppressing NF-κB-mediated pro-inflammatory cytokine production [1] - It was identified via structure-based drug design, optimized for potency, selectivity, and oral bioavailability [1] - Preclinical data supports potential for treating cardiovascular (hypertension, stroke, atherosclerosis) and inflammatory disorders (inflammatory bowel disease, arthritis) [1] - Compared to reference ROCK inhibitor Y-27632, it exhibits superior oral bioavailability (65% vs. ~30%) and longer half-life (3.5 hours vs. ~1.5 hours) [1] |
| 分子式 |
C29H30N8O5
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|---|---|---|
| 分子量 |
570.60
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| 精确质量 |
570.234
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| CAS号 |
850664-21-0
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| 相关CAS号 |
GSK269962A hydrochloride;2095432-71-4
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| PubChem CID |
16095342
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| 外观&性状 |
White to light yellow solid powder
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| 密度 |
1.45
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| LogP |
4.431
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| tPSA |
155.68
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| 氢键供体(HBD)数目 |
2
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| 氢键受体(HBA)数目 |
11
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| 可旋转键数目(RBC) |
10
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| 重原子数目 |
42
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| 分子复杂度/Complexity |
860
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| 定义原子立体中心数目 |
0
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| InChi Key |
YOVNFNXUCOWYSG-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C29H30N8O5/c1-2-37-24-17-25(31-18-23(24)33-28(37)26-27(30)35-42-34-26)41-22-5-3-4-20(16-22)32-29(38)19-6-8-21(9-7-19)40-15-12-36-10-13-39-14-11-36/h3-9,16-18H,2,10-15H2,1H3,(H2,30,35)(H,32,38)
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| 化学名 |
N-[3-[2-(4-amino-1,2,5-oxadiazol-3-yl)-1-ethylimidazo[4,5-c]pyridin-6-yl]oxyphenyl]-4-(2-morpholin-4-ylethoxy)benzamide
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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: ≥ 2.08 mg/mL (3.65 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 20.8 mg/mL澄清DMSO储备液加入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: ≥ 2.08 mg/mL (3.65 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 20.8 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 | 1.7525 mL | 8.7627 mL | 17.5254 mL | |
| 5 mM | 0.3505 mL | 1.7525 mL | 3.5051 mL | |
| 10 mM | 0.1753 mL | 0.8763 mL | 1.7525 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) 。