| 规格 | 价格 | 库存 | 数量 |
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| 10 mM * 1 mL in DMSO |
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| 靶点 |
Selective inhibitor of diacylglycerol acyltransferase 1 (DGAT1) with the following inhibitory parameter:
- IC50 = 12 nM (recombinant human DGAT1); no significant inhibition of DGAT2 (inhibition rate <5% at 10 μM) [1] |
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| 体外研究 (In Vitro) |
与其他酰基转移酶(例如 DGAT-2 (IC50=53 μM) 和系统发育家族成员酰基辅酶 A 胆固醇酰基转移酶-1 和 -2 (IC50=296 μM))相比,A922500 (A-922500) 表现出显着的选择性。 1]。
DGAT1酶活性抑制: - A922500 以浓度依赖性方式抑制重组人DGAT1活性: - 1 nM浓度抑制28% DGAT1活性; - 10 nM浓度抑制72% DGAT1活性; - 100 nM浓度抑制率>90%; - 通过非线性回归曲线拟合测得半数最大抑制浓度(IC50)为12 nM [1] - 肝细胞甘油三酯(TG)合成抑制: - 在人肝癌HepG2细胞中,A922500 (10~1000 nM)浓度依赖性减少新生TG合成: - 100 nM A922500 使[14C]-油酸掺入细胞TG的量较溶剂组减少45%; - 1000 nM A922500 使TG合成减少78%,且对细胞活力无显著影响(MTT法检测活力>90%)[1] |
| 体内研究 (In Vivo) |
在所有研究剂量下,DGAT-1 抑制剂 A 922500 (A-922500) 均可降低血液甘油三酯水平(较基线);然而,只有在 3 mg/kg 剂量时才具有统计学意义,该剂量可使血清甘油三酯平均降低 53%。同样,使用 3 mg/kg 剂量的 A 922500,血清 FFA 浓度显着降低 55%,总胆固醇显着降低 25%。没有研究 DGAT-1 抑制剂量显着影响体重。 0.3 和 3 mg/kg 的 922500 可以显着改善血液 LDL/HDL 胆固醇比率,尽管它对单独的 LDL 或 HDL 胆固醇几乎没有影响。用 3 mg/kg A 922500 治疗后,血液甘油三酯浓度显着降低 (39%),就像血脂异常仓鼠一样。在接受载体治疗的动物中,FFA 水平在 14 天内急剧上升。 922500 以剂量依赖性方式抑制这种上升,与载体组相比,用 3 mg/kg 的 DGAT-1 抑制剂治疗 14 天后,FFA 浓度降低 32%(p < 0.05)。 922500 在 0.3 和 3 mg/kg 的剂量下,可使 HDL 胆固醇从基线水平显着升高;然而,只有与 3 mg/kg 剂量的载体相比,这种上升才显着。在接受赋形剂治疗的大鼠中,体重在两周内急剧增加; 922500 对此没有影响。在接受载体治疗的组中,低密度脂蛋白胆固醇要低得多。 DGAT-1 抑制不会进一步降低 LDL 和总胆固醇[1]。
Zucker肥胖大鼠的降脂效应: 1. 动物与分组:8周龄雄性Zucker肥胖大鼠(fa/fa基因型,体重350~400 g)随机分为4组(每组n=6):溶剂组(0.5% CMC-Na)、A922500 3 mg/kg/天组、10 mg/kg/天组、30 mg/kg/天组[1] 2. 处理方案:每日口服灌胃给药,持续14天;第14天禁食6小时后采集血清和肝脏样本[1] 3. 结果: - 血清甘油三酯(TG):较溶剂组分别降低25%(3 mg/kg)、40%(10 mg/kg)、55%(30 mg/kg)(溶剂组TG:850±90 mg/dL); - 血清总胆固醇(TC):无显著变化(溶剂组TC:180±20 mg/dL); - 肝脏TG:10 mg/kg和30 mg/kg组较溶剂组分别降低18%和30%(溶剂组肝脏TG:150±25 mg/g组织); - 血清HDL-C和LDL-C无显著变化[1] - 高脂血症仓鼠的降脂效应: 1. 动物与分组:6周龄雄性Golden Syrian仓鼠(体重100~120 g),饲喂高脂饲料(40%脂肪)2周诱导高脂血症后,随机分为3组(每组n=6):溶剂组、A922500 10 mg/kg/天组、30 mg/kg/天组[1] 2. 处理方案:每日口服灌胃给药,持续7天(期间继续饲喂高脂饲料);第7天禁食后采集血清样本[1] 3. 结果: - 血清TG:较溶剂组分别降低35%(10 mg/kg)、60%(30 mg/kg)(溶剂组TG:620±70 mg/dL); - 血清TC:30 mg/kg组较溶剂组降低12%(溶剂组TC:210±25 mg/dL); - 血清HDL-C:30 mg/kg组较溶剂组升高10%(溶剂组HDL-C:45±5 mg/dL)[1] |
| 酶活实验 |
重组人DGAT1活性检测:
反应体系(200 μL)包含50 mM Tris-HCl(pH 7.5)、5 mM MgCl2、0.1%牛血清白蛋白(BSA)、10 ng重组人DGAT1、20 μM 1,2-二油酰甘油(DAG,底物)、10 μM [14C]-油酰-CoA(放射性酰基供体,比活度55 Ci/mmol)及A922500 (0.1~100 nM)。混合物在37°C孵育20分钟以促进TG合成,加入500 μL氯仿:甲醇(2:1,v/v)终止反应并提取脂质。1000×g离心5分钟后,取有机相转移至新管,蒸发至干后用100 μL氯仿重悬。将重悬脂质点样于薄层色谱(TLC)板,用正己烷:乙醚:乙酸(80:20:1,v/v/v)展开,碘蒸气显色定位TG条带。刮取TG条带至闪烁瓶,液体闪烁计数器检测放射性。与溶剂组比较计算抑制率,通过非线性回归曲线拟合得IC50[1] |
| 细胞实验 |
HepG2细胞甘油三酯合成实验:
1. 细胞培养:人肝癌HepG2细胞以2×105细胞/孔接种于6孔板,在含10%胎牛血清(FBS)、100 U/mL青霉素和100 μg/mL链霉素的DMEM培养基中,37°C、5% CO2培养24小时[1] 2. 药物处理:更换为含A922500 (10 nM、100 nM、1000 nM)或溶剂(0.1% DMSO)的无血清DMEM培养基,预孵育1小时后,每孔加入5 μCi/mL [14C]-油酸(与0.1% BSA复合),继续孵育24小时[1] 3. 脂质提取与定量:细胞用冰浴PBS洗涤2次,500 μL氯仿:甲醇(2:1,v/v)裂解。按DGAT1酶活性实验方法提取脂质,液体闪烁计数器检测TG放射性。BCA法测定细胞蛋白浓度,以TG放射性(dpm/mg蛋白)标准化TG合成量[1] 4. 细胞活力检测:平行孔用相同浓度A922500 处理24小时后,加入MTT溶液(5 mg/mL)孵育4小时,DMSO溶解甲瓒结晶,酶标仪检测570 nm吸光度。细胞活力按(处理组吸光度/溶剂组吸光度)×100%计算[1] |
| 动物实验 |
Dissolved in Polyethylene glycol/hydroxypropyl-β-cyclodextrin (10% w/v); 0.03, 0.3, and 3 mg/kg; oral gavage
Male Golden Syrian hamsters with hyperlipidemia, and Male Zucker fatty rats Zucker fatty rat study: 1. Animals: Male Zucker fatty rats (fa/fa genotype, 8 weeks old, body weight 350–400 g) were housed under controlled conditions (22±2°C, 12-hour light/dark cycle) with free access to standard chow and water [1] 2. Grouping: Rats were randomly divided into 4 groups (n=6/group): - Vehicle group: 0.5% carboxymethyl cellulose sodium (CMC-Na) solution; - A922500 3 mg/kg/day group; - A922500 10 mg/kg/day group; - A922500 30 mg/kg/day group [1] 3. Drug preparation: A922500 was dissolved in DMSO (10% v/v) and diluted with 0.5% CMC-Na to the final concentration (DMSO final concentration ≤1%) [1] 4. Administration: Daily oral gavage at a volume of 10 mL/kg for 14 days. Rats were fasted for 6 hours before sample collection on day 14 [1] 5. Sample collection and detection: - Serum: Collected via orbital sinus puncture, centrifuged at 3000×g for 10 minutes, and analyzed for TG, TC, HDL-C, LDL-C (enzymatic kits); - Liver: Dissected after euthanasia, homogenized in ice-cold PBS, and liver TG was quantified via enzymatic kit [1] - Hyperlipidemic hamster study: 1. Animals: Male Golden Syrian hamsters (6 weeks old, body weight 100–120 g) were fed a high-fat diet (40% fat, 0.2% cholesterol) for 2 weeks to induce hyperlipidemia. They were housed under the same conditions as rats [1] 2. Grouping: Hamsters were randomized into 3 groups (n=6/group): vehicle, A922500 10 mg/kg/day, 30 mg/kg/day [1] 3. Drug preparation and administration: Same as the Zucker rat study; daily oral gavage for 7 days (continued high-fat diet) [1] 4. Sample collection and detection: Fasting serum was collected via cardiac puncture after euthanasia on day 7, and serum TG, TC, HDL-C were measured via enzymatic kits [1] |
| 毒性/毒理 (Toxicokinetics/TK) |
In vitro cytotoxicity: In HepG2 cells, A922500 (up to 1000 nM) showed no significant cytotoxicity, with cell viability >90% compared to the vehicle group (MTT assay, 24-hour treatment) [1]
- In vivo safety: - In Zucker fatty rats and hyperlipidemic hamsters treated with A922500 (up to 30 mg/kg/day for 14 days and 7 days, respectively): - No significant changes in body weight (weight change <5% vs. vehicle); - Serum liver function markers (ALT, AST) and kidney function markers (BUN, creatinine) were within normal ranges (no significant difference vs. vehicle); - No obvious clinical signs of toxicity (e.g., lethargy, diarrhea, abnormal behavior) [1] |
| 参考文献 | |
| 其他信息 |
A 922500 is an aromatic ketone.
A922500 is a synthetic, selective inhibitor of diacylglycerol acyltransferase 1 (DGAT1)—a key enzyme that catalyzes the final step of triglyceride (TG) synthesis (condensation of diacylglycerol and acyl-CoA to form TG) [1] - Its lipid-lowering mechanism is mediated by inhibiting DGAT1 in the liver and intestine: reduced hepatic TG synthesis decreases liver lipid accumulation and serum TG secretion; inhibited intestinal TG synthesis reduces absorption of dietary lipids, synergistically lowering serum TG levels [1] - Preclinical studies in Zucker fatty rats (a model of genetic obesity and hypertriglyceridemia) and high-fat diet-induced hyperlipidemic hamsters confirm that A922500 exhibits dose-dependent serum TG-lowering effects, with no significant impact on HDL-C (or mild elevation in hamsters), supporting its potential for treating hypertriglyceridemia [1] - Unlike non-selective lipid-lowering drugs, A922500 specifically targets DGAT1 without inhibiting DGAT2 (a DGAT isoform critical for adipose tissue TG storage), minimizing the risk of adverse effects related to adipose tissue dysfunction [1] |
| 分子式 |
C26H24N2O4
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| 分子量 |
428.48
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| 精确质量 |
428.173
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| CAS号 |
959122-11-3
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| 相关CAS号 |
959122-11-3;
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| PubChem CID |
24768261
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| 外观&性状 |
Off-white to yellow solid powder
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| 密度 |
1.3±0.1 g/cm3
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| 沸点 |
576.1±50.0 °C at 760 mmHg
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| 闪点 |
302.2±30.1 °C
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| 蒸汽压 |
0.0±1.7 mmHg at 25°C
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| 折射率 |
1.679
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| LogP |
4.77
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| tPSA |
95.5
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| 氢键供体(HBD)数目 |
3
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| 氢键受体(HBA)数目 |
4
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| 可旋转键数目(RBC) |
6
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| 重原子数目 |
32
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| 分子复杂度/Complexity |
659
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| 定义原子立体中心数目 |
2
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| SMILES |
C1C[C@H]([C@@H](C1)C(=O)O)C(=O)C2=CC=C(C=C2)C3=CC=C(C=C3)NC(=O)NC4=CC=CC=C4
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| InChi Key |
BOZRFEQDOFSZBV-DHIUTWEWSA-N
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| InChi Code |
InChI=1S/C26H24N2O4/c29-24(22-7-4-8-23(22)25(30)31)19-11-9-17(10-12-19)18-13-15-21(16-14-18)28-26(32)27-20-5-2-1-3-6-20/h1-3,5-6,9-16,22-23H,4,7-8H2,(H,30,31)(H2,27,28,32)/t22-,23-/m1/s1
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| 化学名 |
(1R,2R)-2-[4-[4-(phenylcarbamoylamino)phenyl]benzoyl]cyclopentane-1-carboxylic 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 (5.83 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: 15% Captisol: 20mg/mL View More
配方 3 中的溶解度: 6.67 mg/mL (15.57 mM) in 50% PEG300 50% Saline (这些助溶剂从左到右依次添加,逐一添加), 悬浊液; 超声助溶。 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 | 2.3338 mL | 11.6692 mL | 23.3383 mL | |
| 5 mM | 0.4668 mL | 2.3338 mL | 4.6677 mL | |
| 10 mM | 0.2334 mL | 1.1669 mL | 2.3338 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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