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Erythroxylum pungens Tropane Alkaloids: GC-MS Analysis and the Bioactive Potential of 3-(2-methylbutyryloxy)tropan-6,7-diol in Zebrafish (Danio rerio)
Planta Medica ( IF 2.7 ) Pub Date : 2020-11-11 , DOI: 10.1055/a-1264-4302
Letícia Gondim Lambert Moreira 1 , Maria Elisa Leite Ferreira 2 , Fernanda Priscila Santos Reginaldo 1 , Estela Mariana Guimarães Lourenço 3 , José Angelo Silveira Zuanazzi 4 , Euzébio Guimarães Barbosa 1 , Leandro de Santis Ferreira 1 , Arthur Germano Fett-Neto 5 , Alberto José Cavalheiro 6 , Ana Carolina Luchiari 2 , Raquel Brandt Giordani 1
Affiliation  

Tropane alkaloids are specialized plant metabolites mostly found in the Erythroxylaceae and Solanaceae families. Although tropane alkaloids have a high degree of structural similarity because of the tropane ring, their pharmacological actions are quite distinct. Brazil is one of the main hotspots of Erythroxylum spp. diversity with 123 species (almost 66% of the species catalogued in tropical America). Erythroxylum pungens occurs in the Caatinga, a promising biome that provides bioactive compounds, including tropane alkaloids. As part of our efforts to investigate this species, 15 alkaloids in specimens harvested under different environmental conditions are presented herein. The occurrence of 3-(2-methylbutyryloxy)tropan-6,7-diol in the stem bark of plants growing in their natural habitat, greenhouse controlled conditions, and after a period of water restriction, suggests that it is a potential chemical marker for the species. This alkaloid was evaluated for several parameters in zebrafish (Danio rerio) as a model organism. Regarding toxicity, teratogenic effects were observed at 19.5 µM and the lethal dose for embryos was 18.4 µM. No mortality was observed in adults, but a behavioral screen showed psychostimulatory action at 116.7 µM. Overall, the alkaloid was able to cause zebrafish behavioral changes, prompting further investigation of its potential as a new molecule in the treatment of depression-like symptoms. In silico, targets involved in antidepressant pathways were identified by docking.

中文翻译:

Erythroxylum pungens Tropane 生物碱:GC-MS 分析和 3-(2-methylbutyryloxy)tropan-6,7-diol 在斑马鱼 (Danio rerio) 中的生物活性潜力

托烷生物碱是特化的植物代谢物,主要见于红花科和茄科。托烷类生物碱虽然由于具有托烷环而具有高度的结构相似性,但其药理作用却截然不同。巴西是赤霉属的主要热点之一。123 个物种的多样性(几乎 66% 的物种在热带美洲编目)。Erythroxylum pungens 出现在 Caatinga,这是一个很有前途的生物群落,提供生物活性化合物,包括托烷生物碱。作为我们研究该物种的努力的一部分,本文介绍了在不同环境条件下采集的标本中的 15 种生物碱。3-(2-methylbutyryloxy)tropan-6,7-diol 在其自然栖息地、温室控制条件下生长的植物茎皮中的存在,经过一段时间的水限制,表明它是该物种的潜在化学标记。这种生物碱在作为模式生物的斑马鱼 (Danio rerio) 中的几个参数进行了评估。关于毒性,在 19.5 µM 处观察到致畸作用,胚胎致死剂量为 18.4 µM。在成人中未观察到死亡率,但行为筛查显示 116.7 µM 的心理刺激作用。总体而言,生物碱能够引起斑马鱼的行为改变,促使进一步研究其作为治疗抑郁症样症状的新分子的潜力。在计算机中,通过对接确定了参与抗抑郁途径的靶标。这种生物碱在作为模式生物的斑马鱼 (Danio rerio) 中的几个参数进行了评估。关于毒性,在 19.5 µM 处观察到致畸作用,胚胎致死剂量为 18.4 µM。在成人中未观察到死亡率,但行为筛查显示 116.7 µM 的心理刺激作用。总体而言,生物碱能够引起斑马鱼的行为改变,促使进一步研究其作为治疗抑郁症样症状的新分子的潜力。在计算机中,通过对接确定了参与抗抑郁途径的靶标。这种生物碱在作为模式生物的斑马鱼 (Danio rerio) 中的几个参数进行了评估。关于毒性,在 19.5 µM 处观察到致畸作用,胚胎致死剂量为 18.4 µM。在成人中未观察到死亡率,但行为筛查显示 116.7 µM 的心理刺激作用。总体而言,生物碱能够引起斑马鱼的行为改变,促使进一步研究其作为治疗抑郁症样症状的新分子的潜力。在计算机中,通过对接确定了参与抗抑郁途径的靶标。这种生物碱能够引起斑马鱼的行为改变,促使进一步研究其作为治疗抑郁症症状的新分子的潜力。在计算机中,通过对接确定了参与抗抑郁途径的靶标。这种生物碱能够引起斑马鱼的行为改变,促使进一步研究其作为治疗抑郁症症状的新分子的潜力。在计算机中,通过对接确定了参与抗抑郁途径的靶标。
更新日期:2020-11-11
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