New potent and selective inhibitors of anandamide reuptake with antispastic activity in a mouse model of multiple sclerosis
作者:Alessia Ligresti、Maria Grazia Cascio、Gareth Pryce、Sanjitha Kulasegram、Irina Beletskaya、Luciano De Petrocellis、Bijali Saha、Anu Mahadevan、Cristina Visintin、Jenny L Wiley、David Baker、Billy R Martin、Raj K Razdan、Vincenzo Di Marzo
DOI:10.1038/sj.bjp.0706418
日期:2006.1
commercially available, was inactive in the 'tetrad' up to a 20 mg kg(-1) dose (i.v.). Like O-2093, the other four compounds exhibited low affinity in CB(1) (K(i) from 1.3 to >10 microM) and CB(2) binding assays (1.310 microM), very low potency as fatty acid amide hydrolase (FAAH) inhibitors (IC(50)>25 microM) and were inactive in the 'tetrad' up to a 30 mg kg(-1) dose (i.v.). While O-2247 and O-2248 were poor
我们之前报道过,化合物 O-2093 是一种内源性大麻素 anandamide (AEA) 再摄取的选择性抑制剂。我们现在重新检查了 O-2093 在体内的活性并合成了四种结构类似物(O-2247、O-2248、O-3246 和 O-3262),它们的活性在以下方面进行了评估:(a)进行的结合测定从过度表达人类 CB(1) 和 CB(2) 受体的细胞中取出细胞膜;(b) vanilloid type-1 (TRPV1) 通道功能活性的瞬时受体电位测定([Ca(2+)](i) 的测量);(c) 大鼠嗜碱性白血病 (RBL-2H3) 细胞中的 [(14)C]AEA 细胞摄取和水解测定;(d) 小鼠“四联体”测试(热板上的镇痛、“环”上的不动、直肠体温过低和开放场中的运动不足);(e) 慢性复发性实验性过敏性脑脊髓炎 (CREAE) 小鼠的肢体痉挛测试,多发性硬化症 (MS) 模型。O-2093,无论是我们合成的还是市售的,在高达