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在胎盘增生和胎盘前期疾病中,P-糖蛋白表达下降
Enrrico Bloise1,2,3, Isabelle Seidita4, Eleonora Nardi5
1Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil - ebloise@icb.ufmg.br.
胎盘前和形谱系障碍显示胎盘组织中的P-糖蛋白 (P-gp) 减少,可能增加胎儿对母亲药物和毒素的暴露.
科学领域:
- 产科和妇科 产科和妇科
- 药理学 药理学是指药理学的学科.
- 细胞生物学 细胞生物学
背景情况:
- 乳腺癌耐药性蛋白 (BCRP) 和P-glycoprotein (P-gp) 是多种药物耐药性转运体,作为胎盘的守门人.
- 这些载体在怀孕期间限制胎儿暴露于孕产妇的异生菌和毒素.
- 胎盘增生谱 (PAS) 和胎盘前 (PP) 涉及异常的胎盘侵袭,并与炎症有关,可能影响传送器功能.
研究的目的:
- 为了调查P-gp和BCRP表达在胎盘组织中的P-gp和BCRP表达的变化,来自PAS和PP的怀孕.
- 为了确定这些常见的产科病理是否与胎盘药物载体表达的变化有关.
主要方法:
- 在32个胎盘样本 (8个对照,14个PAS,10个PP) 上进行了免疫组织化学检查.
- 评估了P-gp和BCRP的表达水平,使用免疫染区域和强度的半定量得分.
- 统计分析比较了对照组,PAS组和PP组之间的载体表达.
主要成果:
- 与对照人群相比,在PAS和PP胎盘的同胞细胞中观察到P-gp染色强度的降低.
- 与PAS标本相比,在PP中注意到P-gp强度的进一步降低.
- 胎儿血管中的P-gp免疫分在PAS和PP组显著下降.
结论:
- PAS和PP与胎盘P-gp表达显著下降有关.
- 在PAS和PP怀孕中的胎儿可能面临来自母亲循环中的药物和毒素的高暴露.
- 需要进一步的研究来阐明在这些产科条件下P-gp下调的背后机制.
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