1-Trichloromethyl-1,2,3,4-tetrahydro-β-carboline (TaClo) and related derivatives: chemistry and biochemical effects on catecholamine biosynthesis
作者:Gerhard Bringmann、Doris Feineis、Ralf God、Karl Peters、Eva-Maria Peters、Joachim Scholz、Franz Riederer、Andreas Moser
DOI:10.1016/s0968-0896(02)00060-3
日期:2002.7
1-Trichloromethyl-1,2,3,4-tetrahydro-beta-carboline (TaClo, 2) is a mammalian alkaloid that readily originates in the human organism, by Pictet-Spengler condensation of endogenously present tryptamine (Ta) and the non-natural hypnotic agent trichloroacetaldehyde (chloral, Clo). Due to its structural analogy to the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP, 1), TaClo is discussed to possibly
1-Trichloromethyl-1,2,3,4-tetrahydro-beta-carboline(TaClo,2)是一种哺乳动物生物碱,通过Pictet-Spengler缩合内源存在的色胺(Ta)和非天然催眠药三氯乙醛(氯醛,氯仿)。由于其结构类似于神经毒素1-甲基-4-苯基-1,2,3,6-四氢吡啶(MPTP,1),因此讨论了TaClo可能有助于帕金森氏病作为环境毒素的发病机理。先前对大鼠和神经元细胞培养的研究表明2能够诱导对多巴胺代谢的严重干扰。在本文中,我们报道了2对酪氨酸羟化酶活性的影响[L-酪氨酸,四氢蝶啶/氧氧化还原酶(3-羟基化),EC 1.14,16.2; [TH]在体外,使用富含TH的伏伏核制备的大鼠脑匀浆。TaClo(2)剂量依赖性地抑制基础TH活性(IC(50)= 3 microM),并且在垂体腺苷酸环化酶激活多肽(PACAP-27)激活酶后,它还减少了L-DOPA的形成(IC(50)