We sought to determine whether substance P receptors (SPR) exist in human placenta and if do their cellular localization in placental villi, and to supply morphological evidence for the functional significance of SP i...We sought to determine whether substance P receptors (SPR) exist in human placenta and if do their cellular localization in placental villi, and to supply morphological evidence for the functional significance of SP in placental and fetal development. Methods: Immunohistochemical ABC method was used in the experiment. Results: Both syncytiotrophoblasts and cytotrophoblasts, stromal cells, capillary endothelium, lymphocytes in capillary cavity, and all blood islet in cells early human placenta showed SPR immunoreactivity in cytoplasm but with negative nuclei. Conclusion: SP produced by placental villi mediated by SPR might be responsible for the synthesis and release of placental hormone, the development of capillaries and the regulation of microcirculation in placental villi and fetal immune function.展开更多
目的:通过比较辅助生殖技术(ART)来源和自然妊娠来源胎盘全基因组表达谱的差异,研究ART技术对胎盘功能和胎儿发育的影响,借此评估ART子代的安全性。方法:胎盘组织取自因输卵管因素行体外受精-胚胎移植和自然妊娠足月产妇各3例。利用Affy...目的:通过比较辅助生殖技术(ART)来源和自然妊娠来源胎盘全基因组表达谱的差异,研究ART技术对胎盘功能和胎儿发育的影响,借此评估ART子代的安全性。方法:胎盘组织取自因输卵管因素行体外受精-胚胎移植和自然妊娠足月产妇各3例。利用AffymetrixHG-U133 Plus 2.0基因芯片对2组胎盘组织进行芯片杂交分析。用定量反转录聚合酶链反应(qRT-PCR)验证其中10个差异表达基因,根据其涉及的不同功能进行生物信息学分析。分为6类:免疫应答、跨膜转运、代谢、氧化应激、细胞分化及其他功能。用免疫组织化学对其中5个差异表达基因产物进行细胞定位研究。结果:ART来源胎盘组织中共鉴定出26个差异表达基因,其中17个上调,9个下调。其中涉及免疫应答的基因,如ERAP2和STAT4;涉及细胞分化的基因如MUC1,经qRT-PCR验证2组间确实存在差异表达。基因产物主要表达在胎盘绒毛组织中,分布在合体滋养层细胞的细胞质和(或)细胞膜中。结论:ART来源胎盘和自然妊娠胎盘存在全基因组表达谱差异。差异表达基因涉及到多种胎盘关键功能,ERAP2,STAT4及MUC1等差异表达基因可能作为评估胎盘与ART子代安全性关联的分子标记物。展开更多
文摘We sought to determine whether substance P receptors (SPR) exist in human placenta and if do their cellular localization in placental villi, and to supply morphological evidence for the functional significance of SP in placental and fetal development. Methods: Immunohistochemical ABC method was used in the experiment. Results: Both syncytiotrophoblasts and cytotrophoblasts, stromal cells, capillary endothelium, lymphocytes in capillary cavity, and all blood islet in cells early human placenta showed SPR immunoreactivity in cytoplasm but with negative nuclei. Conclusion: SP produced by placental villi mediated by SPR might be responsible for the synthesis and release of placental hormone, the development of capillaries and the regulation of microcirculation in placental villi and fetal immune function.
文摘目的:通过比较辅助生殖技术(ART)来源和自然妊娠来源胎盘全基因组表达谱的差异,研究ART技术对胎盘功能和胎儿发育的影响,借此评估ART子代的安全性。方法:胎盘组织取自因输卵管因素行体外受精-胚胎移植和自然妊娠足月产妇各3例。利用AffymetrixHG-U133 Plus 2.0基因芯片对2组胎盘组织进行芯片杂交分析。用定量反转录聚合酶链反应(qRT-PCR)验证其中10个差异表达基因,根据其涉及的不同功能进行生物信息学分析。分为6类:免疫应答、跨膜转运、代谢、氧化应激、细胞分化及其他功能。用免疫组织化学对其中5个差异表达基因产物进行细胞定位研究。结果:ART来源胎盘组织中共鉴定出26个差异表达基因,其中17个上调,9个下调。其中涉及免疫应答的基因,如ERAP2和STAT4;涉及细胞分化的基因如MUC1,经qRT-PCR验证2组间确实存在差异表达。基因产物主要表达在胎盘绒毛组织中,分布在合体滋养层细胞的细胞质和(或)细胞膜中。结论:ART来源胎盘和自然妊娠胎盘存在全基因组表达谱差异。差异表达基因涉及到多种胎盘关键功能,ERAP2,STAT4及MUC1等差异表达基因可能作为评估胎盘与ART子代安全性关联的分子标记物。
