首页> 外文期刊>Reproductive toxicology >Preconceptional paternal glycidamide exposure affects embryonic gene expression: single embryo gene expression study following in vitro fertilization.
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Preconceptional paternal glycidamide exposure affects embryonic gene expression: single embryo gene expression study following in vitro fertilization.

机译:孕前父本缩水甘油酰胺暴露会影响胚胎基因表达:体外受精后单胚胎基因表达研究。

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摘要

Recognition of early determinants of disease onset has sparked an interest in paternally transmitted factors and their impact on the developing embryo. Acrylamide (AA), a widely distributed xenobiotic compound, is converted to its active metabolite glycidamide (GA) by the CYP2E1 enzyme. Based on its capacity to induce dominant lethal mutations, we hypothesized that paternal GA exposure would have a negative impact on embryonic genome activation, via GA-DNA and protamine adducts persisting in the fertilizing sperm. Using a combination of in vitro fertilization (IVF) techniques and RT-qPCR single embryo gene expression (SEGE), we studied the expression of key DNA repair genes and genes important for embryo development, at the 1-, 2-, 4- and 8-cell stage of the developing mouse embryo. Compared to controls paternal GA-exposure gave rise to an altered pattern of embryonic gene expression, with an initial reduced expression at early stages followed by increased expression at the 8-cell stage.
机译:对疾病发作的早期决定因素的认识引发了对父系传播因素及其对发育中胚胎的影响的兴趣。丙烯酰胺(AA)是一种分布广泛的异种生物化合物,可通过CYP2E1酶转化为其活性代谢产物缩水甘油酰胺(GA)。基于其诱导显性致死突变的能力,我们假设父本GA暴露将通过GA-DNA和精子中持续存在的鱼精蛋白加合物对胚胎基因组激活产生负面影响。结合体外受精(IVF)技术和RT-qPCR单胚基因表达(SEGE),我们研究了关键DNA修复基因和对胚胎发育重要的基因的表达,分别位于1、2、4和4位。发育中的小鼠胚胎的8细胞阶段。与对照相比,父本GA暴露引起胚胎基因表达模式的改变,在早期阶段初始表达降低,随后在8细胞阶段表达升高。

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