摘要
目的观察氨基醇咔唑化合物BTB3体外抗细粒棘球蚴的效果。方法体外培养羊源细粒棘球蚴原头节和继发感染小鼠来源的生发层细胞,用浓度为1、2、4、8、10和20μg/ml的BTB3作用3 d后,分别采用美兰染色法和CCK-8法检测原头节和生发层细胞的活性。用扫描电镜观察10μg/ml BTB3对生发层细胞造成的损伤。体外培养细粒棘球蚴囊,用浓度为1、5和10μg/ml的BTB3作用2周后,观察其对囊的影响,并用扫描电镜观察囊内部结构的变化。结果 10μg/ml和20μg/ml BTB3组原头节的死亡率分别为(100.0±0.0)%和(85.2±7.2)%。但当浓度降低后,原头节死亡率均低于10%。生发层细胞经8、10和20μg/ml BTB3作用后,其细胞活性抑制率均达100%,其余低浓度BTB3组的抑制率随浓度的降低而降低。扫描电镜观察发现,BTB3可使生发层细胞发生脱落、皱缩以及空腔化。10μg/ml BTB3作用于棘球蚴囊14 d后,全部囊均出现塌陷。其超微结构显示,BTB3作用后棘球蚴内囊中出现了细胞脱落和不均匀的现象。结论 BTB3对体外培养的细粒棘球蚴原头节、生发层细胞和棘球蚴囊均有较强的作用,是一种潜在的抗棘球蚴药物。
Objective To evaluate the effects of a aminoalcohol-carbazole compound BTB3 against Echinococcus granulosus in vitro. Methods The protoscoleces from sheep and germinal cells from secondary-infected mice were cultured and treated with 1, 2, 4, 8, 10 and 20 μg/ml BTB3 for 3 days. The viability of protoscoleces and cells was determined by the methylene blue exclusion method and CCK-8 assay. Meanwhile, the effect of 10 μg/ml BTB3 on germinal cells was assessed by scanning electron microscopy（SEM）. The metacestodes were treated with 1, 5 and 10 μg/ml BTB3 for two weeks, and the integrity of the metacestodes was evaluated by SEM. Results The 10 μg/ml and 20 μg/ml BTB3 caused a death rate of （100.0±0.0）% and （85.2±7.2）% respectively for protoscoleces. As the concentration decreased, the death rate remained below 10%. Moreover, the activity inhibition rate on germinal cells was about 100% for 8, 10 and 20 μg/ml BTB3, and was reduced with the decrease of BTB3 concentration other than the afore-mentioned three. SEM revealed detachment, shrinkage, and cavitation of germinal cells after BTB3 treatment. And the metacestodes all showed the loss of turgidity after BTB3 treatment for 14 days, which indicated cell detachment and uneven distribution of cells in internal cyst of metacestodes. Conclusion BTB3 has strong effects against Echinococcu granulosus protoscoleces, germinal cells and metacestodes in vitro, which make it a potential drug against hydatid diseases.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
2016年第3期245-248,254,共5页
Chinese Journal of Parasitology and Parasitic Diseases
基金
国家自然科学基金(No.81401691)
上海市卫计委面上项目(No.201540170)
国家国际科技合作专项项目(No.2014DFA31130)~~
