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首页> 外文期刊>Reproductive toxicology >Altered matrix metalloproteinases and tissue inhibitors of metalloproteinases in embryos from diabetic rats during early organogenesis.
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Altered matrix metalloproteinases and tissue inhibitors of metalloproteinases in embryos from diabetic rats during early organogenesis.

机译:糖尿病大鼠胚胎早期器官发生过程中基质金属蛋白酶和金属蛋白酶组织抑制剂的改变。

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摘要

Maternal diabetes increases the risks for embryo malformations. Matrix metalloproteinase-2 (MMP-2) and MMP-9 are two relevant MMPs for embryo development. Here, we addressed whether changes in these MMPs and in tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) and TIMP-2 are altered in embryos and decidua from type 1 diabetic rats during early organogenesis. Our results demonstrate MMP-2 and MMP-9 overactivities and overexpression, together with increases in lipid peroxidation and nitric oxide production in embryos and decidua from diabetic animals. There is a concomitant increase in the inhibitory activity of TIMP-1 and TIMP-2 in embryos and decidua, and an increase in protein expression of embryonic TIMP-1 and TIMP-2. In situ zymography demonstrated MMPs overactivities despite increased TIMPs in embryos and decidua in maternal diabetes during early organogenesis. This study reveals that maternal diabetes leads to profound alterations in MMPs/TIMPs balance during embryo organogenesis, the gestational period during which most malformations are induced.
机译:孕产妇糖尿病会增加胚胎畸形的风险。基质金属蛋白酶2(MMP-2)和MMP-9是两个与胚胎发育相关的MMP。在这里,我们解决了早期器官发生过程中,来自1型糖尿病大鼠的胚胎和蜕膜中这些MMP以及基质金属蛋白酶1(TIMP-1)和TIMP-2组织抑制剂的变化是否改变。我们的结果表明,MMP-2和MMP-9的过度活性和过度表达,以及糖尿病动物的胚胎和蜕膜中脂质过氧化和一氧化氮生成的增加。 TIMP-1和TIMP-2在胚胎和蜕膜中的抑制活性会随之增加,而胚胎TIMP-1和TIMP-2的蛋白表达也会随之增加。原位酶谱显示,尽管早期器官发生过程中,母体糖尿病患者的胚胎和蜕膜中的TIMPs增加,但MMPs仍过度活跃。这项研究表明,孕产妇糖尿病会导致胚胎器官发生期间的MMP / TIMPs平衡发生深刻变化,而胚胎期是导致大多数畸形的妊娠期。

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