金诺芬对斑马鱼胚胎的发育毒性研究
发布时间:2018-04-16 11:03
本文选题:金诺芬 + 斑马鱼 ; 参考:《延边大学》2017年硕士论文
【摘要】:药物毒性和临床安全性是药物开发失败的主要因素。金诺芬临床上用于治疗类风湿性关节炎,并且作为一种抗癌药物已经完成I/II期临床试验,但是有关金诺芬的发育毒性的研究较少,本文主要研究其发育毒性并以斑马鱼为实验模型。研究方法:受精2h的斑马鱼胚胎分别加入不同浓度的药物(1.0,2.5,5.0,10.0 μM)至72 hpf。在72 h,我们观察到斑马鱼胚胎出现了严重的心包膜水肿和色素减少这两个发育毒性表型。依据表型缺陷,分别进行生化检测,包括超氧化物歧化酶(SOD)与丙二醛(MDA)和基因表达检测氧化应激(sod1,gpx1a)、心脏发育(amhc,vmhc)、重金属(hsp70,ctr-1)、色素形成(mitfb,trp-1a)相关的基因。研究结果:生化检测结果表明SOD活性在斑马鱼体内减少,而MDA的含量增加。qRT-PCR基因表达检测结果表明,当加药浓度大于2.5 μM,氧化应激相关基因、色素相关基因和一个金属相关基因(ctr1)相对表达量均减少,心脏相关基因和另一金属相关基因(trp-1a)相对表达量增加。这些结果表明金诺芬对斑马鱼早期发育具有潜在的发育毒性。研究目的:通过以上研究结果,文章评价了金诺芬的毒性,为以后金诺芬的临床安全使用提供证据。
[Abstract]:Drug toxicity and clinical safety are the main factors of drug development failure.Jinnofen is clinically used in the treatment of rheumatoid arthritis and has completed a phase I/II clinical trial as an anticancer drug, but little research has been done on the developmental toxicity of Jinnofen.The developmental toxicity of zebrafish was studied in this paper.Methods: zebrafish embryos were fertilized for 2 hours with different concentrations of 1. 0. 5 (5. 0) and 10. 0 渭 M) to 72 hpf. respectively.At 72 h, two developmental toxic phenotypes of severe pericardial edema and pigmentation were observed in zebrafish embryos.According to phenotypic defects, biochemical tests, including superoxide dismutase (SOD) and malondialdehyde (MDAs), and gene expression were performed respectively. The genes related to oxidative stress were identified as sod1gpx1a, heart development amhctadine, heavy metal hsp70ctr-1, pigment formation mitfbtrp-1a).Results: biochemical results showed that the activity of SOD decreased in zebrafish, while the content of MDA increased. QRT-PCR gene expression showed that when the drug concentration was more than 2.5 渭 m, oxidative stress related genes were detected.The relative expression of pigment related gene and one metal related gene was decreased, and the relative expression of heart related gene and another metal related gene was increased.These results suggest that Jinnofen is potentially developmental toxic to the early development of zebrafish.Objective: to evaluate the toxicity of Jinnofen and provide evidence for its safe clinical use.
【学位授予单位】:延边大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:R965
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