DS86760016
目录号 : GC65011
DS86760016 是一种亮氨酸-tRNA 合成酶 (LeuRS) 抑制剂，对多药耐药 (MDR) 革兰氏阴性菌, 如大肠杆菌、肺炎克雷伯菌和铜绿假单胞菌，具有抗菌活性。DS86760016 对大肠杆菌、铜绿假单胞菌和鲍曼不动杆菌的 LeuRS 酶有抑制作用，IC50 分别为 0.38、0.62 和 0.16 μM。
Cas No.:1853176-89-2
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
DS86760016 is a potent leucyl-tRNA synthetase (LeuRS) inhibitor with activity against multidrug-resistant (MDR) Gram-negative bacteria, such as Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. DS86760016 inhibits LeuRS enzymes from Escherichia coli, Pseudomonas aeruginosa, and Acinetobacter baumannii, with IC50s of 0.38, 0.62, and 0.16 μM, respectively[1][2].
DS86760016 inhibits some Gram-negative bacteria with an MICs ranging from 0.25 to 2 μg/ml. The MIC of DS86760016 against Gram-positive bacteria is >32 μg/ml. DS86760016 is active against both susceptible and these MDR P. aeruginosa, E. coli, and K. pneumoniae strains, with an MIC90 of 2 μg/ml[1].
DS86760016 (7.5-220 mg/kg; s.c.; q6h for 7 days) shows moderate spontaneous resistance (FSR)[1].The pharmacokinetic (PK) parameters of DS86760016 in mouse, rat, monkey, and dog plasma by the intravenous (i.v.) route are test. DS86760016 shows lower intravenous plasma clearances (CLp) of 11, 29, 5.6, and 4.5 ml/min/kg in mouse, rat, monkey, and dog plasma, respectively. The plasma half-lives (t1/2) for DS86760016 are 1.9, 1.5, 8.6, and 8.3 h in mice, rats, monkeys, and dogs, respectively. The lower plasma clearance resulted in higher plasma exposures for DS86760016, with dose-normalized areas under the curve after i.v. administration (DNAUCIVs) of 1.5, 0.6, 3.7, and 3.0 μg h kg/ml/mg in mice, rats, monkeys, and dogs, respectively[1].
[1]. Purnapatre KP, et al. In Vitro and In Vivo Activities of DS86760016, a Novel Leucyl-tRNA Synthetase Inhibitor for Gram-Negative Pathogens. Antimicrob Agents Chemother. 2018;62(4):e01987-17. Published 2018 Mar 27.
[2]. Kumar M, et al. DS86760016, a Leucyl-tRNA Synthetase Inhibitor with Activity against Pseudomonas aeruginosa. Antimicrob Agents Chemother. 2019;63(4):e02122-18. Published 2019 Mar 27.
| Cas No. | 1853176-89-2 | SDF | Download SDF |
| 分子式 | C9H11BClNO4 | 分子量 | 243.45 |
| 溶解度 | 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 | 4.1076 mL | 20.5381 mL | 41.0762 mL |
| 5 mM | 0.8215 mL | 4.1076 mL | 8.2152 mL |
| 10 mM | 0.4108 mL | 2.0538 mL | 4.1076 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。
DS86760016, a Leucyl-tRNA Synthetase Inhibitor with Activity against Pseudomonas aeruginosa
Antimicrob Agents Chemother 2019 Mar 27;63(4):e02122-18.PMID:30670430DOI:10.1128/AAC.02122-18.
DS86760016 is a new leucyl-tRNA-synthetase inhibitor at the preclinical development stage. DS86760016 showed potent activity against extended-spectrum multidrug-resistant Pseudomonas aeruginosa isolated from clinical samples and in vitro biofilms. In a murine catheter-associated urinary tract infection model, DS86760016 treatment resulted in significant eradication of P. aeruginosa from the kidney, bladder, and catheter without developing drug resistance. Our data suggest that DS86760016 has the potential to act as a new drug for the treatment of Pseudomonas infections.
In Vitro and In Vivo Activities of DS86760016, a Novel Leucyl-tRNA Synthetase Inhibitor for Gram-Negative Pathogens
Antimicrob Agents Chemother 2018 Mar 27;62(4):e01987-17.PMID:29437618DOI:10.1128/AAC.01987-17.
The emergence of multidrug-resistant (MDR) Gram-negative bacilli is a major concern in the treatment of nosocomial infections. Antibacterial agents with novel modes of action can be useful, as these pathogens have become resistant to almost all existing standard-of-care agents. GSK2251052, a leucyl-tRNA synthetase inhibitor, has a novel mode of action against Gram-negative bacteria. However, the phase 2 studies with this drug were terminated due to microbiological failures based on the rapid emergence of drug resistance during the treatment of complicated urinary tract infections. DS86760016 is a novel leucyl-tRNA synthetase inhibitor active against MDR Gram-negative bacteria, such as Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa, with an improved pharmacokinetic profile. DS86760016 showed lower plasma clearance, longer plasma half-life, and higher renal excretion than GSK2251052 did in mice, rats, monkeys and dogs. DS86760016 also showed lower mutant prevention concentrations against P. aeruginosa than did GSK2251052. No resistant bacteria were observed in murine urinary tract infection models at a dose that maintained urinary concentrations above the mutant prevention concentration. DS86760016 also showed a lower risk of resistance development than did GSK2251052 in comparative in vivo studies with murine urinary tract infection models. These results suggest that DS86760016 has potential as a new drug for the treatment of MDR Gram-negative bacterial infections, with a lower risk of drug resistance development than that of GSK2251052.