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Chlorpyrifos modifies the expression of genes involved in human placental function

机译:毒死rif可修饰人类胎盘功能相关基因的表达

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The effects of organophosphate pesticides on human placenta remain poorly investigated although an increased risk of pregnancy alterations has been reported in women chronically exposed to these pesticides. Here, we have addressed whether chlorpyrifos (CPF) modifies the expression of genes relevant for placental function. Human placental JEG-3 cells were exposed to increasing CPF concentrations up to 100. μM for 24 and 48. h and cell viability, mRNA, protein and hormone levels were analyzed. Quantitative RT-PCR assays revealed that CPF increased the expression of ABCG2, GCM1 and, even more significantly, βhCG mRNAs in conditions where cell viability and morphology were not compromised. In addition, βhCG protein synthesis and secretion were time-dependently augmented. Present results may reflect a CPF nocive effect on placenta cells or a placental-defense mechanism to preserve its function. These novel CPF trophoblast target genes should be considered in future studies of pregnancy outcomes associated with in vivo exposures.
机译:有机磷酸酯农药对人胎盘的作用仍未得到很好的研究,尽管据报导,长期接触这些农药的妇女怀孕改变的风险增加。在这里,我们已经解决了毒死rif(CPF)是否会修饰与胎盘功能相关的基因的表达。将人胎盘JEG-3细胞暴露于不断升高的CPF浓度,直至24.和48.h,持续至100.μM,并分析了细胞活力,mRNA,蛋白质和激素水平。定量RT-PCR分析显示,在细胞活力和形态没有受到损害的条件下,CPF可以提高ABCG2,GCM1和βhCGmRNA的表达。此外,βhCG蛋白的合成和分泌随时间增加。目前的结果可能反映了CPF对胎盘细胞的伤害作用或维持其功能的胎盘防御机制。在与体内暴露有关的妊娠结局的未来研究中,应考虑使用这些新颖的CPF滋养层靶基因。

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